Question

the sum of three consecutive even natural numbers is 78 find the greatest of these numbers

Answer 1

let the numbers be x
x+1
x+2
now,
according to question
x+x+1+x+2=78
3x+3=78
3x=78-3
3x=75
x=75/3
x=25
1st number =x=25
2nd number =x+1=25+1=26
3rd number =x+2=25+2=27
greatest number is 27

Answer 2

Here is your solution

Let ,
The first even number be x

The second even number be(x+2)

The third even number be (x+2)+2

Sum of three consecutive even numbers is 78

A/q

x + (x+2) + [(x+2)+2 = 78

x+x+x+2+2+2=78

3x + 6 = 78
3x = 78–6
3X= 72
X=24

The 3 consecutive number would be:-

The first even number => x = 24

The second even number =>(x+2) =24+2=26

The third even number=>(x+2)+2
=24+4=28

The largest amongst them is 28

Hope it helps you