Question

1) soe soe had 15kg of flour. She used 4/5 of it to make some cookies. How many kilograms of flour had she left?

2) U Kyaw mixed red paint and blue paint in the ratio 5:3 for painting a wall. If he made 24 liters of paint for the painting job, how many litres of blue paint did he use?
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Answer 1

1) 3 liters left

2) 9 liters of blue paint

Explanation:

1) 1/5 * 15 = 3

2) 3 liters of blue paint for each 8 liters.

24/8 * 3 = 9

Answer 2

Fractions and Comparisons

• Level : JHS

1.

The amount of flour used is :

= 4/5 × 15 kg

= 12 kg

The amount of flour left is :

= 15 kg - 12 kg

= 3 kg

2.

5 : 3 = Red : Blue

The amound of blue paint :

= 3 : (3 + 5) × 24 liters

= 3 : 8 × 24 liters

= 9 liters

So, the litres of blue paint did he use is 9 liters

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