Raj's income is ₹45,000 and his expenditure is ₹33,000. If his income is increased by 20% and expenditure by 12%, then what will be the percentage increase in saving?

Correct option is D

Given:
Income of Raj = Rs.45000
Expenditure = Rs.33000
Formula Used:
Saving = (income - expenditure)
Solution:
Saving = (income - expenditure)
=> (45000 - 33000) = Rs.12000
Increment of 20% in income = 45000 × 120% = Rs.54000
Increment of 12% in expenditure = 33000 × 112% = Rs.36960
New saving = (income - expenditure)
=> (54000 - 36960) = Rs.17040
Increment in saving = (17040 - 12000) = Rs.5040
% increment = (5040 × 100)/12000 = 42%