SSC Selection Post 2023 PYQ — Question 62

The correct answer is option 2 i.e. 10 : 12 : 15.

30% of P = 0.25 of Q = 1/5​ of S

⇒ 30​/100 P = 1/4 ​ Q = 1/5 ​S

Let this common value be x. Then:

⇒ $\frac{30}{100}P = x \Rightarrow P = \frac{100x}{30} = \frac{10x}{3}$

$\frac{1}{4}Q = x \Rightarrow Q = 4x$

⇒ $\frac{1}{5}S = x \Rightarrow S = 5x$

P : Q : S = 10x/3 ​ : 4x : 5x

10x : 12x : 15x ⇒ 10 : 12 : 15