Question

The sum of three consecutive even numbers is 90. Find the numbers. ​

Answer 1

Answer:

let the even number be x

next number=x+2

similarly, next number=x+2+2=x+4.

now, a/q

x+x+2+x+4=90

=3x+6=90

=3x=84

so, x=28

hence x+2=30

similarly x+4=32

so we conclude that the three numbers are 28,30 and 32.

Thank you

Answer 2

Answer:

(2n-2)+2n+(2n+2)=90

6n=90

n=15

so,

2n-2=15*2-2=28

2n=30

2n+2=15*2+2=32

number are 28,30,32.

Step-by-step explanation:

here we are considering

2n = even number

by arithmetic , we know the series

.........,(2n-4),(2n-2),2n,(2n+2),(2n+4),......so on.