CMAT 2015 Solved Question Paper

(c) Average of 39 numbers = 17
Sum of 39 numbers = 17 x 39 = 663
New, sum when each number multiplied by 12 = 663 x 12 = 7956
Sum of all 39 numbers when 16 is added to each = 7956+ 39x16 = 8580
Now, sum of all numbers, when each is divided by 11 =

8580

11

= 780
∴ Average of new set of numbers =

Sum‌of‌the‌numbers

Total‌number‌of‌numbers

=

780

39

= 20