Question

Find three consecutive positive even numbers whose sum is 90

Answer 1

let three positive consecutive even numbers are 2A,(2A+2) and (2A+4),

then according to the question , we have

2A+2A+2+2A+4=90,

6A+6=90,

6(A+1)=90,

then

A+1=15,

A=15-1,

A=14,


therefore

1st even number=2×14=28,

2nd even number=28+2=30,

3rd even number=30+2=32

Answer 2

Let the three positive consecutive no be x, x+2 and x+4

x+x+2+x+4 = 90
3x + 6 = 90
3x = 90 - 6
3x = 84
x= 84/3
x= 28

The no are 28 , 30 and 32...