Sandy is younger than Molly by 14 years. If the ratio of their ages is 7:9, how old is Sandy?
Choose the correct choice from the following.
A) 42 B) 49 C) 56 D) 63 E) 70
Let Sandy's age be 7x and let Molly's age be 9x.   9x - 7x = 14   x = 7   Sandy is 49 years old.   The answer is 49.
<result>B</result>
Sandy is younger than Molly by 14 years. If the ratio of their ages is 7:9, how old is Sandy?