# Form 1 Mathematics Revision Questions and Answers Set 1

Form 1 Mathematics Revision Questions and Answers Set 1.

In this session, we are going to solve several Mathematics questions.

Lessons (**52**) * SHARE*

- 1.
Without using mathematical table or calculator, evaluate: #sqrt((0.00320+0.0608)/(1.44 times 0.4))#

2m 39s - 2.
Madam Akinyi earns a basic salary of KSh. 24,000 per month. In addition she is paid a commission of 5% for sales above KSh. 30,000. In the month of February she sold goods worth KSh. 300,000 at a discount of 6%.
Calculate her total earning that month.

3m 4s - 3.
The curved surface area of a cylindrical container is #1980cm^2#. If the radius of the container is 21cm, calculate to one decimal place the capacity of the container in litres. (Take#pi# = #22/7#)

4m 7s - 4.
A number n is such that when divided by 3, 7, 11 or 13, the remainder is always one. Find the number n.

2m 15s - 5.
The price of an article is marked as 12,000/= Mr. Omanga sold the article at a discount of 10% and still made a profit of 8%. Calculate the cost of the article.

2m 8s - 6.
Evaluate the following
#{-78÷ (-6)} + {26times - 2}#

1m 28s - 7.
If #2/3# is added to the numerator of a certain fraction the fraction will be increased by #1/21# and if #1/2# is deducted from its denominator that fraction becomes #2 /9#. Find the reciprocal of the fraction.

4m 40s - 8.
Kairietu is now four times as old as her daughter and six times as old as her son. Twelve years from now, the sum of the ages of her daughter and son will differ from her age by 9 years.
What is Kairietu’s present age?

4m 46s - 9.
Given a: b = 6:7 and b: c = 14:17 find a:b:c.

2m 24s - 10.
A farmer has a piece of land measuring 840m by 396m. He divides it into square plots of equal size. Find the maximum area of one plot.

3m 42s - 11.
In a Chemistry experiment, a boy mixed some acid solution of 45% concentration with an acid solution of 25% concentration. In what proportion should the two acids be mixed in order to get 100cm3 of
solution of 30% concentration?

3m 37s - 12.
The sum of three consecutive whole numbers is 84. Find the numbers.

1m 19s - 13.
Maureen spent sh. 207 to buy 7 exercise books and 4 pens while Sharon spent sh. 165 to buy 5 exercise books and 5 pens of same type. Find the cost of each item.

5m 26s - 14.
The sum of interior angles of a regular polygon is #720^0#. Find the number of sides of the polygon and give its name.

1m 46s - 15.
If x = -2, y =-6 and z=4, find the value of:
#(3yz)/(x)#

1m 10s - 16.
Nkini bought 3 skirts and 2 sweaters at a total cost sh. 1575. If he had bought 2 skirts and 3 sweaters he would have spent sh. 225 more. Find the cost of 5 skirts and 2 sweaters.

4m 21s - 17.
Which ratio is greater, 2: 3 or 4: 5?

1m 6s - 18.
A 72-hactare farm is to be shared among three sons in the ratio 2:3:4. What will be the sizes in hectares of the three shares?

1m 10s - 19.
A car travels 40km on 5 litres of petrol. How far does it travel on 12 litres of petrol?

1m 7s - 20.
A train takes 3 hours to travel between two stations at an average speed of 40km per hour. A t what average speed would it need to travel to cover the same distance in 2hours?

0m 56s - 21.
Change #2/5# into percentage.

0m 23s - 22.
Convert 0.67 into a percentage:

0m 33s - 23.
A farmer harvested 250 bags of maize in a season. If he sold 200 bags, what percentage of his crops does this represent?

1m 8s - 24.
A man earning sh. 4 800 per month was given a 25% pay rise. What was his new salary?

2m 12s - 25.
A dress which was costing sh. 1 200 now goes for sh. 960. What is the percentage decrease?

1m 19s - 26.
The ratio of John’s earnings to Peter’s earnings is 5:3. If John’s earnings increase by 12%, his new figure becomes sh. 5 600. Find the corresponding percentage change in Peter’s earnings if the sum of their new earnings is sh.9 600.

5m 45s - 27.
(a) Find the circumference of a circle of a radius 7cm.
(b) The circumference of a bicycle wheel is 140 cm. find its radius.

3m 49s - 28.
An arc of a circle subtends an angle 60 at the centre of the circle. Find the length of the arc if the radius of the circle is 42 cm. #(pi=22/7)#.

2m 14s - 29.
Find the surface area of a triangular prism shown below.

3m 19s - 30.
Find the surface area of a cylinder whose radius is 7.7 cm and height 12 cm.

6m 44s - 31.
Find the mass of an ice cube of side 6 cm, if the density of the ice is 0.92 g/ cm³.

3m 36s - 32.
The figure below is a rectangle of length 5cm and width 3cm. Find its perimeter

0m 42s - 33.
Find the volume of a solid whose cross-section is a right- angled triangle of base 4 cm, height 5 cm and length 12 cm.

1m 1s - 34.
Find the volume of a cuboid of length 5 cm, breadth 3 cm and height 4 cm.

0m 32s - 35.
The area of a sector of a circle is 38.5 cm². Find the radius of the circle if the angle subtended at the centre is #90^0# (Take #pi=22/7#)

3m 0s - 36.
Find the area of the sector of a circle of radius 3cm if the angle subtended at the centre is 140 ? (take #pi=22/7) #

1m 12s - 37.
Find the volume of cork of mass 48 g. given that density of cork is 0.24 g/cm³

1m 26s - 38.
The density of iron is 7.9 g/cm³. what is this density in kg/m³

0m 56s - 39.
Ten men working six hours a day take 12 days to complete a job. How long will it take eight men working 12 hours a day to complete the same job?

1m 44s - 40.
Find the volume of a cylinder with radius 1.4 m and height 13 m.

2m 31s - 41.
The ratio of the adjacent sides of a rectangle is 4:5. Find the dimensions of the rectangle if its length is (x+1) cm and the width is (x - 3) cm. Hence, determine the ratio of the area of the rectangle to its perimeter.

3m 26s - 42.
The area of a trapezium is #20cm^2# and the lengths of the two parallel sides are 4cm and 6cm. Calculate the percentage increase in its area if the perpendicular distance between the parallel sides is increased by 2 cm.

3m 0s - 43.
A rectangle which is three times as long as it is wide has the same perimeter as a square of area #64cm^2#. What is the length of the length of the rectangle?

2m 42s - 44.
A piece of wire 200cm long is bent to form a rectangular shape. One side of the rectangle is 4 cm longer than the other. Find the dimensions of the rectangle.

2m 17s - 45.
Juma spent half of his July salary on school fees, one eighth on farming and two-thirds of the remainder on food. Calculate his July salary if he spent sh.3200 on food.

2m 33s - 46.
A goat is tethered to a post by a rope 6.3m. Find its maximum grazing area.

3m 4s - 47.
Three tanks are capable of holding 108 litres, 168 litres and 180 litres of milk. Determine the capacity of the greatest vessel which can be used to fill each one of them an exact number of times.

1m 56s - 48.
Evaluate
#1/3 of (5/6 -1/4) ÷1/12#

1m 24s - 49.
If each interior angle of a regular polygon is #150^0#, how many sides does the polygon have?

2m 2s - 50.
Evaluate
#(3/4+1 5/7 ÷4/7 of 2 1/3)/((1 3/7-5/8)times2/3)#

3m 13s - 51.
Solve the simultaneous equations
x+ y=3
2x+4y=10

1m 58s - 52.
A trader bought 8 cows and 12 goats for a total of Ksh.294,000. If he had bought 1 more cows and 3 more goats he would have spend Ksh.337,500.
a).Form two equations to represent the above information.
(b).Determine the cost of a cow and that of a goat.

7m 28s

### Related Content

- Form 1 business studies revision questions and answers set 3
Form 1 business studies revision questions and answers set 3

25 Video Lessons

- Form 1 business studies revision questions and answers set 2
Form 1 business studies revision questions and answers set 2

25 Video Lessons

- Form 1 business studies revision questions and answers set 1
Form 1 business studies revision questions and answers set 1

24 Video Lessons

- Contacts Between East Africa and the Outside World Upto the 19th Century lessons
Contacts Between East Africa and the Outside World Upto the 19th Century online lessons

14 Video Lessons

- Form 1 Business Studies online lessons on the office
Form 1 Business Studies online lessons on the office

27 Video Lessons

- Form 1 Business Studies online lessons on entrepreneurship
Form 1 Business Studies online lessons on entrepreneurship

15 Video Lessons

- Form 1 Business Studies: Business and its environment online lessons
Form 1 Business Studies: Business and its environment online lessons

7 Video Lessons

- Form 1 Business Studies online video lessons on production
Form 1 Business Studies online video lessons on production

15 Video Lessons

- Form 1 Business Studies: Satisfaction on human wants online lessons
Form 1 Business Studies: Satisfaction on human wants online lessons

10 Video Lessons

- Form 1 Business Studies online lessons on introduction to business studies
Form 1 Business Studies online lessons on introduction to business studies

4 Video Lessons

- Form 1 Chemistry: Water and Hydrogen online lessons
Form 1 Chemistry: Water and Hydrogen online lessons

16 Video Lessons

- Form 1 Chemistry air and combustion online lessons
Form 1 Chemistry air and combustion online video lessons

23 Video Lessons

- Form 1 Chemistry: Acids, bases and indicators online lessons
Form 1 Chemistry: Acids, bases and indicators online lessons

8 Video Lessons

- Form 1 Chemistry: Simple classification of substances online lessons
Form 1 Chemistry: Simple classification of substances online lessons

24 Video Lessons

- Form 1 Introduction to chemistry online lessons
Form 1 Introduction to chemistry online lessons

16 Video Lessons

- Form 1 Mathematics online lessons on algebraic expressions
Form 1 Mathematics online lessons on algebraic expressions

5 Video Lessons

- Form 1 Mathematics: Square and square roots online lessons
Form 1 Mathematics: Square and square roots online lessons

4 Video Lessons

- Form 1 Mathematics lessons on decimals
This sessions contains Form 1 Mathematics lessons on decimals

9 Video Lessons

- Form 1 Biology topical questions and answers on the cell
Form 1 Biology topical questions and answers on the cell.

26 Video Lessons

- Form 1 Biology cell physiology questions and answers
In this session, we are going to solve Form 1 Biology cell physiology topical questions. Answers are in video format.

27 Video Lessons

- Form 1 Physics heat transfer topical questions and answers
This sessions contains form 1 Physics heat transfer topical questions and answers. Answers are in video format.

27 Video Lessons

- Form 1 Physics Thermal Expansion Questions and Answers
In this session, we are going to solve Form 1 Physics questions on thermal expansions. Answers are in video format.

23 Video Lessons

- Rectilinear propagation of light questions and answers
Rectilinear Propagation of Light and Reflection at Plane Surfaces questions and answers

25 Video Lessons

- Form 1 mathematics online video lessons on fractions
In this online course, we are going to learn about Form 1 mathematics fractions. Answers are in video format.

7 Video Lessons

- Form 1 Chemistry Simple Classification of Substances Questions and Answers
Form 1 Chemistry Simple Classification of Substances Questions and Answers.

43 Video Lessons

- Form 1 Mathematics Lessons on Integers
In this session, we are going to learn about integers, which is a Form 1 Mathematics topic. The lessons are available in video format as well as pdf.

5 Video Lessons

- Form 1 Physics Questions and Answers on Pressure
In this course, we are going to solve Form 1 physics questions on pressure. Answers are available in video format.

43 Video Lessons

- Form 1 Introduction to Biology Questions and Answers
In this session, we are going to give solutions to various Form 1 Biology questions on introduction to Biology.

8 Video Lessons

- Form 1 Biology: Nutrition in Animals Questions and Answers
Form 1 Biology: Nutrition in Animals Questions and Answers In this session, we are going to answer several exam standard questions in nutrition in animals. Very useful for KCSE candidates as well as those preparing for mocks or class exams.

37 Video Lessons

- Form 1 Biology Nutrition in Plants Questions and Answers
In this course, we are going to solve Biology Form 1 questions on nutrition in plants.

28 Video Lessons

- Social, Economic and Political Organisation of Kenyan Societies in the 19th C
In this course, we are going to learn about Social, Economic and Political Organisation of Kenyan Societies (Bantu, Agikuyu, Ameru, Akamba, The Abagusii, Mijikenda e.t.c.) in the 19th Century lessons.

41 Video Lessons

- Form 1 History Lessons: The peoples of Kenya up to the 19th century
In this course, we are going to learn about the peoples of Kenya up to the 19th century. We will learn about background of Kenyan people, origin, migration and settlement of Kenyan people, effects of migration among other topics.

33 Video Lessons

- Form 1 Mathematics Lessons on Least Common Multiples (LCM)
Form 1 Mathematics Lessons on Least Common Multiples (LCM).

2 Video Lessons

- Form 1 Mathematics Lessons on Greatest Common Divisor (GCD)
Form 1 Mathematics Lessons on Greatest Common Divisor (GCD)

2 Video Lessons

- Form 1 CRE Lessons on Creation and The Fall of Man
In this session, we are going to learn about creation and the fall of man. Some of the topics content covered includes: 1. Biblical accounts of creation. 2. What shows that man is God’s special creation? 3. Similarities between the two accounts of creation. among others

15 Video Lessons

- Form 1 CRE Lessons on The Bible
In this session, we are going to cover CRE Form 1 topic 2 lessons on The Bible. Some of the content covered includes: 1. The Bible as the word of God 2. Reasons why Christians read the Bible. 3. The bible as a library 4. The divisions of the Bible 5. The Old Testament Books among others

11 Video Lessons

- Form 1 CRE Introduction to Christian Religious Education Lessons
In this session, we are going to learn the following: 1. What is Christian Religious Education? 2. Reasons for studying Christian Religious Education.

2 Video Lessons

- Form 1 Chemistry: Acids, Bases and Indicators Questions and Answers
In this session, we are going to solve questions on acids, bases and indicators which is a Form 1 Chemistry topic. The questions are exam standard and very useful to those preparing for class as well as KCSE exams.

11 Video Lessons

- Form 1 History: Development of Agriculture Lessons
In this session, we are going to learn about development of agriculture, which is a Form 1 History and Government topic.

24 Video Lessons

- Form 1 Chemistry Water and Hydrogen Questions and Answers
In this course, we are going to solve several Chemistry questions on water and hydrogen, which is a Form 1 topic. All answers are in video format.

16 Video Lessons

- Form 1 Physics Questions and Answers on Force
In this session, we are going to solve several Physics form 1 questions on force. Answers are available in video format.

34 Video Lessons

- Form 1 Introduction to Biology Lessons
In this session, we are going to cover introduction to Biology. The areas covered are meaning of Biology and the various branches of Biology.

3 Video Lessons

- Form 1 History Lessons on Early Man
In this session, we are going to learn about early man. Early man is a form 1 History and government topic. Some of the areas covered include: 1. The origin of Human Beings. 2. Reasons why East Africa is regarded as the place where man first evolved., among others

11 Video Lessons

- Form 1 Introduction to History and Government Lessons
In this course, we are going to focus on introduction to History and Government which is a Form 1 topic. Some of topics covered include: 1. The meaning of History 2. Periods in History 3. Branches of History. 4. Meaning of Government. 5. Sources of Information in History and Government among...

18 Video Lessons

- Form 1 Physics Measurement 1 Video Questions and Answers
Form 1 Physics Measurement 1 Video Questions and Answers. In this session, several topical questions on Physics Form 1 measurement 1 will be solved.

36 Video Lessons

- Form 1 Chemistry Topical Questions and Answers on Air and Combustion
In this course, we are going to answer several question on Air and Combustion, a form 1 chemistry topic. Answers are available in video format.

22 Video Lessons

- Form 1 Mathematics Evaluation of Numerical Expressions Questions and Answers
Form 1 Mathematics Evaluation of Numerical Expressions Questions and Answers

15 Video Lessons

- Form 1 Mathematics Linear Equations Questions and Answers
Form 1 Mathematics Linear Equations Questions and Answers. in this session, we are going to solve Form 2 questions on linear equations.

25 Video Lessons

- Form 1 Questions and Answers on Fractions
Form 1 Questions and Answers on Fractions. In this course, a number of questions on fractions will be solved. The answers are available in video format.

12 Video Lessons

- Form 1 Particulate Nature of Matter Questions and Answers
Form 1 Particulate Nature of Matter Questions and Answers. Find well solved and explained questions and answers on particulate nature of matter.

17 Video Lessons