Let Weng's age be W and her sister's age be S.
According to the problem,
W = 1/2S
W + 3 + S + 3 = 24
W + S = 18
1/2S + S = 18
3/2S = 18
S = 12
Therefore, W = 1/2(12) = 6
So, Weng is 6 years old and her sister is 12 years old.
13. Weng is ¹/² as old as her sister now in three years, the sum of their ages will be 24.find the age of each now?
1 answer