Question

The sum of three consecutive odd numbers is 21. Find the numbers.​

Answer 1

Answer:

5 ; 7 ; 9

Step-by-step explanation:

let the odd numbers be a , (a+2) , (a+4)

a+a+2+a+4 = 21

or, 3a+6     = 21

or,    3a      = 21-6

or,      a      = 15/3

or,       a     =   5

hence the numbers are 5 ; (5+2) = 7 ; (5+4) = 9

Answer 2

Answer:

Let the 1st number be x.

2nd no. =x+x+x+1

A/TQ,

x+x+x+1=21

3x=21-1

4x=20

x=20/4

x= 5.....

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