Question

Find three consecutive numbers such that the sum of the first and third is 118

Answer 1

let the three consecutive nos are x-1,x,x+1
the sum of the first and third is 118
so x-1+x+1=118
or 2x=118
or x=118/2=59
so the three consecutive nos are 58,59,60

Answer 2

Define x:

Let the first number be x

The second number is x + 1 and third number is x + 2

Solve x:

Sum of the first and the third is 118

x + (x + 2) = 118

x + x + 2 = 118

2x + 2 = 118

2x = 116

x = 58

Find the numbers:

First number = x = 58

Second number = x + 1 = 58 + 1 = 59

Third number = x + 2 = 58 + 2 = 60

Answer: The 3 numbers are 58, 59 and 60