Mr Harun's age now is four times his son's age which is m years. Their total age five years ago was y years.
(i) Express y in terms of m.
(ii) Find the value of m when y = 30.
+118659 Mr Harun's age now is four times his son's age which is m years. Their total age five years ago was y years.
(i) Express y in terms of m.
son's age now = m son's age 5 years ago = m-5
Mr Harun now = 4m Mr Harun's age 5 years ago = 4m-5
Total age 5 years ago = m-5+4m-5 = 5m-10
y = 5m-10
(ii) Find the value of m when y = 30.
If y=30 then
30=5m-10
m=8
