Among five people named A, B, C, D and E, each has a certain age. D is four times the
age of C. A is two times the age of C. D is five times the age of B. The age of B is 12. If E
is thrice the age of A, what is the age of E?
Correct Answer:
A. 90
Explanation:
Given that B is 12, D's age is calculated as 5 times 12, which is 60. Since D is four times the age of C, C's age is 15 (60 divided by 4). A is twice the age of C, making A 30 years old. Finally, as E is three times the age of A, E's age is 90.
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