Question

If three-tenth of two-fifth of a number is 78, then what is the value of 20% of one-fourth of this number?
1. 32.5
2. 65
3. 58
4. 29

Answer 1

Correct Answer - Option 1 : 32.5

Calculation:

Let the number be x

Three-tenth of two-fifth of x = 78

⇒ (3/10) × (2/5) × x = 78

⇒ x = 650

Now, 20% of (1/4)x = (20/100) × (1/4) × 650

⇒ 20% of (1/4)x = 32.5

∴ The value of 20% of one-fourth of given number is 32.5.