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Question

Please help me with question a and b. Thanks so much 

Answer

Question b

Total mass of fruits -> 9u

Mass of banana -> 2/9 × 9u = 2u

Mass of apples -> 9u – 2u = 7u

Since equal mass of apples and bananas were sold, the mass difference before and after were same.

7u – 2u = ½ kg

5u = ½ kg

1u = 1/10 kg

Mass of apples at first -> 7u = 7 × 1/10 = 7/10 kg

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Question a

Capacity of jug -> 2u

Capacity of cup -> 1u

Volume of milk -> 2/5 × 2u = 4/5 u

(i) Fraction of cup filled -> 4/5

 

4/5 u = ½ litre

1u = ½ ÷ 4/5 = 5/8 litre

(ii) 2u = 2 × 5/8 = 10/8 = 1¼ litre

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