Question

Find 3 cosecutive even natural no. whose sum is 138

Answer 1

Let the first number be x.

Other two numbers = x+2 and x+4

A. T. Q.,

x+x+2+x+4=138

3x+6=138

3x=132

x=132/3

x=43

Numbers are 43, 45 and 47.

Answer 2

Step-by-step explanation:

let the three even natural numbers be,

2x , 2x + 2, and 2x + 4

=> 2x + 2x + 2 + 2x + 4 = 138

=> 6x + 6 = 138

=> 6x = 132

=> x = 132/6 = 22

therefore the numbers are,

2x = 2*22 = 44

2x + 2 = 44 + 2 = 46

2x + 5 = 44 + 4 = 48

=> 44, 46, 48