Question

The average of 7 consecutive numbers is 20 .the largest of number is​

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.

Latest number = x + 6 = 23.

Answer 2

hey mate here is your answer!!!

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

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

Latest number = x + 6 = 23.

so answer=23

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