SSC CPO 2023 PYQ — Question 106

SSC CPO - 3 Oct 2023 - Shift 1 • Quantitative Aptitude • Q106

Two numbers are in the ratio 3 : 4. The product of their HCF and LCM is 2700. The sum of the numbers is:

Show answer & explanation

Correct answer: B

Explanation

 The correct answer is Option 2 i.e. 105.

We know that,

a × b = L.C.M × H.C.F

Now, according to the question

Two numbers are in the ratio 3 : 4 = 3x : 4x

⇒ 3x × 4x = 2700

⇒ 12x2 = 2700

⇒ x2 = 225

⇒ x = 15

a = 3x = 45

b = 4x = 60

The sum of the numbers = 45 + 60 = 105