Question

If A's salary is 40 % more than that of B then how much percent is B's salary less than that of A's

Answer 1

let B's salary is 100.

so A's salary is 100+ 40% of 100

= 100 + 40

= 140

so B's salary is 40 more than A's salary.

the required percentage is,

$= \frac{40}{140} \times 100 \\ = \frac{200}{7} \\ = 28 \frac{4}{7} \%$

hope it helps u

Answer 2

Answer: Approx. 71.4

Step-by-step explanation:

If it's asked in a Olympiad or a competitive exam, the best way is to let the values.

Let salary of B be ₹100

So the salary of A will be

(100+40)×100/100

= ₹140

So we have to calculate how much less is 100 to 140

Let the percentage decrease be X.

X×140/100 = 100

X = 100×100/140

X ≈ 71.4 %

BTW the correct way is to use variable but the above-mentioned way is much better.