Question

Gregory’s age is 5 years greater than 1/3 of Amanda’s age. Gregory is 17 years old. If Amanda’s age is denoted by x, which equation represents this situation and how old is Amanda?

Answer 1

Gregory's age=x/3 +5

Gregory's age=17

17=x/3 +5

(x+15)/3=17

x+15=3×17

x+15=51

x=51-15

x=36