Ali will be 6y years old in 6 years time. How old was Ali 4y years ago? A6y - 6 B10y - 6 C2y - 6 D2y + 6
(C): Ali will be 6y years old in 6 years time so his present age = 6y - 6 4y years ago his age = (6y - 6) - 4y = 6y - 6 - 4y = 2y - 6