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 Class 8 Mathematics questions and answers on ratio

Mumbua and Njeri each made a 20 kg mixture of maize and beans. Mumbua mixed the maize and beans in the ratio 3:2. Njeri mixed the maize and beans in the ratio 1:3. How many more kilograms of beans did Njeri use than Mumbua?
A. 15
B. 12
C. 8
D. 7

 (6m 20s)
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