A father is now three times as old as his son. Twelve years ago he was six times as old as his son. How old are the son and the father?
-
A.
20 and 45 -
B.
100 and 150 -
C.
45 and 65 -
D.
35 and 75 -
E.
20 and 60
Correct Answer: Option E
Explanation
Son = x, Father = 3x, 12 yrs ago
son = x – 12, father = 3x – 12
3x – 12 = 6(x – 12)
3x – 12 = 6x – 72
3x = 60
x = 20