Question

Reena reduces her weight in the ratio 5 : 4. What is her weight now, if originally it was
70 kg?(chapter : ratio and proportion std :10

Answer 1

Answer :

›»› The new weight of Reena is 56 kg.

Given :

• Reena reduces her weight in the ratio 5 : 4.

To Find :

• What is her weight now, if originally it was 70 kg?

Solution :

Let us assume that, the new weight of Reena is x kg.

→ 70 : x = 5 : 4

→ 70 * 4 = 5 * x

→ 280 = 5 * x

→ 280 = 5x

→ 280/5 = x

→ 56 = x

→ x = 56

Hence, the new weight of Reena is 56 kg.

Verification :

→ 70 : x = 5 : 4

→ 70 * 4 = 5 * x

→ 70 * 4 = 5 * 56

→ 280 = 5 * 56

→ 280 = 280

Here, L.H.S. = R.H.S.

Hence Verified !