General Aptitude › Percentage › Question #4539
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QIf a person's salary was reduced by 10%, what percentage increase is needed to bring the reduced salary back to the original amount?

ID: #4539 Percentage 240 views
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PercentageTopic
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  • A (100/9)% ✔ ✖
  • B 50% ✔ ✖
  • C 20% ✔ ✖
  • D 39% ✔ ✖
Correct Answer

Explanation


If the original salary was Rs.100 and the new salary is Rs.90, 
then the decrease in salary is Rs.10. 

The increase on Rs.90 is Rs.10, which is a 10/90 = 11.11% increase. 

The increase on Rs.100 is ((10/90)*100)% = (100/9)% = 11.11% increase.

To express the increase as a percentage, you can use the formula:

percent increase = (new value - old value)/old value * 100%
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