SSC GD 2021 PYQ — Question 57

The correct answer is option 4 i.e.  $\frac{5}{4}$

By using BODMAS rule:

 72 ÷ 16 of 3 - [28 ÷ 6 of 4 - 20 ÷ 7  $\times$ (23 - 37) - 41] $\times$ $1\frac{1}{2}$ 

= 72 ÷ 48 - [28 ÷ 24 -   20 ÷ 7  $\times$ (-14) - 41] $\times$ 3/2

= 3/2 - [7/6 + 40 - 41]  $\times$ 3/2

= 3/2 - 1/6   $\times$ 3/2

= 3/2 - 1/4

= 5/4