Question

The difference of two numbers is 16. The greater number is 5 less than 4 times the smaller number. Find the product of the two numbers.

Answer 1

Answer: y = 23

Explanation:

let x = smaller number

let y = greater number

y = 4x - 5

y - x = 16

replace the value of y in the second equation you get

4x -5 -x = 16 ⇒ 3x - 5 = 16 ⇒ 3x = 21 ⇒ x = 7

finally,

y = 23