the salary of an officer has been increased by 50% . By what percent the new salary must be reduced to restore the orignal salary. ( plzz dont use 100 use x)
Answers
Step-by-step explanation:
Let's consider the salary of the officer =100
So, if the salary is increased by 25% then 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 123, then his salary will be 100 or original salary
So, % decrease =
125
25 ×100
=
5/1 ×100
=20%
Hence 20% of his new salary must be deducted so that his salary becomes original salary.
Answer:
Let the salary of a person be x
then, increase in salary = 50% of x
= 50/100 * x
= x/2
New salary = x + x/2
= 3x/2
let y% salary of new salary has to be decreased
so, y/100 of 3x/2 = x
=> y = x * 200/3x
=> y = 200/3
=> y = 66.66%
Hence, her salary should be reduced to 66.66% to restore the new salary