Question

The average of 5 consecutive odd numbers is 25 what is the smallest number

Answer 1

let smallest no.=x
x+x+2+x+4+x+6+x+8/5=25
x=21

Answer 2

Answer:

the 5 consecutive odd numbers can be represented as

n,n+2,n+4,n+6,n+8 .

then,

given,

the average of 5 consecutive odd number = 25

solution:

(n+n+2+n+4+n+6+n+8) / 5 = 25

(5n + 20) / 5 = 25

5n +20= 125

5n = 125 - 20

5n = 105

n = 105/5

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n = 21

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