SSC CHSL 2021 PYQ — Question 74

The correct answer is Option 3 i.e. 18.

Given that 

$(1{{1} \over 8}\div$${{3} \over 4})\div[$$({{1} \over 2}of1{{1} \over 2})$$\div(3{{1} \over 2}-1{{1} \over 4})$ of ${{3} \over 4}-{{3} \over 4}\div2{{1} \over 4}$$]of{{3} \over 4}$

⇒ $({{9} \over 8}\times$${{4} \over 3})\div[$${{3} \over 4}$$\div{{9} \over 4}$ of ${{3} \over 4}-{{3} \over 4}\times{{4} \over 9}$$]of{{3} \over 4}$

⇒ ${{3} \over 2}$$\div{{1} \over 9}$$of{{3} \over 4}$

⇒ (3/2) ÷ (1/12)

⇒ (3/2) * 12 = 18