50% of a number added to 20% of 40 gives a sum of 20. What is the number?

Correct option is B

Given:

50% of a number added to 20% of 40 gives a sum of 20.

Solution:

​$$\frac{50}{100}\times$$​ x + $$\frac{20}{100}\times$$​40 = 20

0.5x + 8 = 20

0.5x = 12

x = 24

Therefore, the number is 24.