SSC MTS 5 Aug 2019 Shift 3 Paper

The average of 4 numbers = 9
⇒ Average = Sum of all numbers/Number of term
⇒ 9 = Sum of 4 numbers/4
⇒ Sum of 4 numbers = 36
⇒ Sum of 5 numbers = 36 + 14 = 50
⇒ New average = 50/5 = 10
∴ The new average is 10.