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Navik Quantitative Aptitude 20 March 2021 (All Shifts) Questions

Option 2 : 52 years

**Given:**

The ratio of present ages = 6 ∶ 7

12 year ago, the ratio of ages = 3 ∶ 4

**Calculation:**

Let the present ages of P and Q are 6x and 7x respectively

According to the question

(6x - 12) ∶ (7x - 12) = 3 ∶ 4

⇒ (6x - 12) × 4 = (7x - 12) × 3

⇒ 24x - 48 = 21x - 36

⇒ 24x - 21x = 48 - 36

⇒ 3x = 12

⇒ x = 4

Sum of present ages = (6x + 7x) = (6 × 4 + 7 × 4)

⇒ 52 years

**∴ The sum of total of their present ages is 52 years. **