Question

Thirty percent of forty percent is equal to twenty percent of what percent

Answer 1

30% of 40 % = 20 % of x

30 / 100 × 40/ 100 = 20 / 100 × x

12 /1 00 = 20/100 × x

12 / 100 × 100/20 = x

12 / 20 = x

x = 3/5

Answer 2

Heya ☺

Given that

30 % of 40 % = 20 % of what

Solution

Let the required number be x. Then,

according to question,

30 % of 40 % = 20 % of x

=> 30/100 × 40/100 = 20/100

=> 3/25 = x/5

=> x = 3 × 5/25

=> x = 3/5

Hence, the required number is 3/5.



Thanks