Question

Hamid has gained weight.

He now weighs 88kg, which is 10% higher than his normal weight.

What is Hamid's normal weight?

Answer 1

Is = %
of 100

So

88 = 110
x 100

Cross multiply

8800 = 110x
Divide both sides by 110

x= 80 kg

Answer 2

Hamid's normal weight is 80 kg .

Explanation:

Let us assume that the normal weight be x .

As given

Hamid has gained weight.

He now weighs 88kg, which is 10% higher than his normal weight.

10% is written in the decimal form

`= (10)/(100)`

= 0.10

10% increase in the weight = 0.10 × Normal weight.

= 0.10 × x

= 0.10x

Thus

Total weight of Hamid = Normal weight + 10% increase in the weight

88 = x + 0.10x

88 = 1.10x

`x = (88)/(1.10)`

x = 80 kg

Therefore the Hamid's normal weight is 80 kg .