Suman saves 10 of her monthly salary Now her expenditure increases by 30 and savings increases by 50...........

Quantitative Aptitiude (CLAT) Percentage

Suman saves 10% of her monthly salary. Now her expenditure increases by 30% and savings increases by 50%. The present increase in her salary is

25%

30%

32%

40%

Explanation:

Let's Suman's monthly salary is 100
She saves 10% of her salary
i.e.10% of 100 = 10
Also her expenditure = 100-90 = 90 or 90%
According to the question
When expenditure is increased by 30%
such that, 90+(30% of 90) = 90+[(30/100)×90] = 117
and savings increased by 50%
such that, 10+(50% of 10) = 10+[(50/100)×10) = 15
New salary = expenditure + savings
= 117+15 = 132
Increase in salary = old salary - new salary = 132-100=32
In %age, (32/100)×100 = 32%