Question

On increasing the salary of a man by 25 %. It becomes 20000. What is his original salary

Answer 1

Answer:

16000

Step-by-step explanation:

let the original salary of the man be denoted by $y$

Then, upon increasing his salary by 25% his new salary can be expressed in term of the original salary as;

$\frac{(100+25)}{100}*y=1.25y$

Equating this to the actual amount of 20000 we get;

$1.25y=20000\\\frac{1.25y}{1.25}=\frac{20000}{1.25}  \\y=16000$

Therefore his original salary was 16000