Question

A's salary is first increased by 25% and then decreased by 20%.The result is the same as B's salary increased by 20% and then reduced by 25%.Find the ratio of B's salary to that of A's.​

Answer 1

Answer:

Step-by-step explanation:

here is ur answer :)

Answer 2

Answer:

10 : 9

Step-by-step explanation:

Let x be the salary of A,

After increasing 25%,

New salary of A = (100+25)% of x

= 125% of x

= 1.25x

Again after decreasing 20%,

Final salary of A = (100-20)% of 1.25x

= 80% of 1.25x

= 0.80 × 1.25x

= x,

Now, let y be the salaray of B,

After increasing 20%,

New salary of B = (100+20)% of y

= 120% of y

= 1.2y

Again after decreasing 25%,

Final salary of B = (100-25)% of 1.2y

= 75% of 1.2y

= 0.75 × 1.2y

= 0.9y

According to the question,

x = 0.9y

$\implies \frac{y}{x}=\frac{1}{0.9}=\frac{10}{9}$