Question

A number when reduced by 10% gives 27 as result. The number is:
1. 30
2. 35
3. 40
4. 33

Answer 1

Correct Answer - Option 1 : 30

Given:

When the required number is reduced by 10% gives 27 as result.

Concept Used:

Concept of percentage. It is calculated on the basis of 100

For example, x% means x out of 100

Calculation:

Let, the required number be x

After reducing by 10% the given number reduced to (100 - 10)x/100

⇒ 9x/10

Accordingly,

9x/10 = 27

⇒ x = 30

∴ The required number is 30.