Question

(8) The first number is equal to 3 times

the second. The difference of the two
numbers is 78. Find both numbers.

Answer 1

117 and 39

Explanation:

let x be the second number then 3x is the first number , then

3x - x = 78

2x = 78 ( divide both sides by 2 )

x = 39 and 3x = 3 × 39 = 117

The first number is 117 and the second is 39