Question

Average of seven consecutive natural number is 50, find the product of 2nd largest and
2nd smallest number



ans.​ 2496

Answer 1

Answer: C) 23

Explanation:

Let the numbers be x, x + 1, x + 2, x + 3, x + 4, x + 5 and x + 6,

Then (x + (x + 1) + (x + 2) + (x + 3) + (x + 4) + (x + 5) + (x + 6)) / 7 = 20.

or 7x + 21 = 140 or 7x = 119 or x =17.