Question

Gran is four times older than her grandson.their ages together total 75 years. a)how old is gran? b)how old will her grandson be in five years time?​

Answer 1

Answer: a. 60  b. 20

Step-by-step explanation: 4x + x = 75

5x = 75

x = 15 (the age of the grandson)

(a) 4x = 60

(b) 15 +5 = 20