Find two numbers whose sum is 60 and whose difference is 24?

Answer 1

42 and 18.

Assuming x is the first number and y is the second number

x + y = 60

x - y = 24

Adding the above 2 equations:

2x = 84

x = 42

Take 1st equation

42 + y = 60

y = 60 - 42

y = 18