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 KCSE 2018 Mathematics Paper 1 Video Questions and Answers

A school water tank is in the shape of a frustum of a cone. The height of the tank is 7.2 m and the top and bottom radii are 6m and 12 m respectively.
(a) Calculate the area of the curved surface of the tank, correct to 2 decimal places. (4 marks)
(b) Find the capacity of the tank, in litres, correct to the nearest litre. (3 marks)
(c) On a certain day, the tank was filled with water. If the school has 500 students and each student uses an average of 40 litres of water per day, determine the number of days that the students would use the water. (3 marks)

 (13m 39s)
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