Question

The sum of three consecutive even numbers is 312. Find the numbers.

Answer 1

Let the numbers be X,X+2,X+4

sum = 312

a.t.q.

X+X+2+X+4 = 312

3x+6 = 312

3x = 312-6

3x = 306

x = 306/3

X = 105

so numbers are 103,105,107

Answer 2

Let one of the numbers be x

Thus,

x + (2 + x) + (4 + x) = 312

x + 2 + x + 4 + x = 312

3x + 6 = 312

3x = 312 - 6

3x = 306

x = 102

Now,

1st number = x = 102

2nd number = (2 + x) = (102 + 2) = 104

3nd number = (4 + x) = (102 + 4) = 106