Question

(24 ) 3
23. The salary of an officer is increased by 25%. By what per cent shou
25% By what per cent should the new salary be
decreased to restore the original salary?​

Answer 1

Answer:

20%

Step-by-step explanation:

Original value of salary- x

Increase by 25%- new salary = x+25%=1.25x

Decrease by y% - new salary = 1.25x +y%=1.25xy

1.25xy=x

1.25y=1

y=1/1.25

y=0.8

0.8 represents 80%, so salary decrease value =20%