Question

The
Salary of an officer es increased
by 25%. By conat per cent should
the new salary
be decreased to
ciestore the original salary?​

Answer 1

Let's consider the salary of officer to be 100.

So, If the salary is increased by 25% , then the new salary -

100+ [100×(25/100) ] = 100+25 = 125

So, his new salary is 125

To make his salary original 25 must be subtracted from 125 , then his salary will be 125-25 = 100 or original salary.

So, To find percentage of salary which must be decreased we must find that 25 is what percentage of 125 .

So, decrease%

= (25/125) × 100

= 1/5 × 100

= 20%

Answer) 20% of his new salary must be deducted so that his salary becomes Original.