Question

A man's salary is reduced by 10%. In order to have his salary back to the original amount, it must be raised by:-
8% , 11% , 100/9% , 65/7%.
Plz explain.

Answer 1

Answer:

100/9%

Step-by-step explanation:

Let the original salary be 100.

∴ His reduced salary = 100 - 10% of 100

                                   = 100 - (10/100) * 100

                                   = 90.

∴ Increase in order to have its salary back:

= 100 - 90

= 10

∴ %Increase in order to have its salary:

= (10 * 100)/90

= 1000/90

= 100/9%

Hope it helps!

Answer 2

Let's assume he earns 1000 . if 10% is deducted then he gets 900 .

So to reach 1000, he shud get a hike of 100.

900=100%

9=1%

99=11%

So he shud get a hike of 11.1%