Question

A person spends 80% of his salary. if his salary increases by 25% and expenditure increases by 10%. what is the percentage increase in his savings

Answer 1

The answer is 160%

What I have done: I took his income as 100
According to the question, his income is increased by 40
so, 140
According to the question, his expenditure is 80 then his expenditure increased by 10%
so 90%
According to the question, the man's saving is 20
because 100−80=20
After his expenditure increased by 10%
his new saving is 50
I.e 140−90=50
I want to find the percentage of saving is increased, so from saving difference 50−20
is 30
30/20×100=150%
I got 150%
but the answer is 160%

Answer 2

I think right answer is 85%......increase in saving....