1.

The average age of a woman and her daughter is 21 years. The ratio of their ages is 5 ∶ 1 respectively. What will be the ratio of their ages after 5 years?

A. 10 ∶ 3
B. 5 ∶ 2
C. 4 ∶ 1
D. 3 ∶ 1
Answer» B. 5 ∶ 2


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