Question

The average of 5 consecutive numbers is 7 what is the highest number

Answer 1

let the first number be = x
second number be = x + 1
third number be = x + 2
fourth number be = x + 2
fifth number be = x + 3

according to the question
x+x+1+x+2+x+3+x+4/5 = 7

5x + 10/5 = 7

by cross multiplication

7×5 = 1×5x + 10

35=5x + 10

35-10=5x

25 = 5x

25/5 = x

5 = x

first number be = x = 5
second x+1=5+1=6
third x+2=5+2=7
fourth x+3 = 5+3 = 8
fifth x+4 = 5+4 = 9

the consecutive numbers are
= 5,6,7,8,9
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