Vaibhav spends 60 of his income His income is increased by 10 and he increased his expenditure by 5 ...........

Quantitative Aptitude (CDS) Percentage

Vaibhav spends 60% of his income. His income is increased by 10% and he increased his expenditure by 5%. Find the percentage increase in his saving?

40%

50%

60%

55%

Explanation:

Let original income = Rs. 100.
Then, expenditure = Rs. 60 and saving = Rs. 40
New income = Rs. 110, new expenditure = Rs. (110/100×60) = Rs. 66
New savins Rs. (110 - 66) = Rs.44
Increase in saving = Rs. 66 - 44 = Rs. 22
Increase% = (22/40×100)% = 55%
increase% in his saving is 55%