This question was previously asked in

MP Police Constable Previous Paper 12 (Held On: 24 Aug 2017 Shift 2)

Option 1 : 120

Making of Constitution I

75383

15 Questions
15 Marks
9 Mins

**Given:**

Natural numbers = 1, 2, 3...........................15

**Formula used:**

Sum of first n natural numbers = n(n + 1)/2

Calculation:

⇒ n = 1, 2, 3...........................15

⇒ n = 15

⇒ Sum of first n natural numbers = 15 × 16/2

⇒ Sum of first n natural numbers = 120

**∴ The age of this person is 120 years.**