SSC MTS 2 Aug 2019 Shift 3 Paper

First 6 natural numbers is 1, 2, 3, 4, 5 and 6
⇒ Average = Sum of first 6 natural numbers/6
⇒ Average = 21/6 = 7/2
⇒ Average when multiples of 3 = [7/2] × 3 = 21/2 = 10.5
∴ Required answer is 10.5