The ratio of Mary’s age to Alice’s age is 3: 5. Alice is 30 years old. How many years old is Mary?
Answer Choices
A. 15
B. 18
C. 20
D. 24
E. 50
The ratio of Mary’s age to Alice’s age is 3: 5. Alice is 30 years old. How many years old is Mary?
Answer Choices
A. 15
B. 18
C. 20
D. 24
E. 50