Question

The sum of a certain even number and the fourth even number after it is 48. find the number

Answer 1

if Let x is first even number then, after it
(x + 2) is the 1st number
(x + 4) is the second number
(x + 6) is the 3rd number
(x + 8) is the 4th number.

A/C to question,
certain number + 4th number after it = 48
x + x + 8 = 48
2x + 8 = 48
x = 20

hence, number of 20