SSC GD 2019 PYQ — Question 81

SSC GD Constable (English) - 19th Feb 2019 Shift 1 • Reasoning • Q81

Which two signs should be interchanged to make the following equation correct?

12 + 16 ÷ 8 × 4 - 8 = 24

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. - and ÷.

Understanding

Given Equation: 12 + 16 ÷ 8 × 4 - 8 = 24

Check all the options:

Option 1: + and ×

After replacement the equation becomes;

=  12 × 16 ÷ 8 + 4 - 8

=  20 is not equal to 24.

Hence, option 1 is not the correct answer.

Option 2: × and -

After replacement the equation becomes;

=  12 + 16 ÷ 8 - 4 × 8

=  -18 is not equal to 24.

Hence, option 2 is not the correct answer.

Option 3: ÷ and ×

After replacement the equation becomes;

=  12 + 16 × 8 ÷ 4 - 8

=  36 is not equal to 24.

Hence, option 3 is not the correct answer.

Option 4: - and ÷

After replacement the equation becomes;

= 12 + 16 - 8 × 4 ÷ 8

= 24 is equal to 24.

Hence, option 4 is the correct answer.