Problem:
A large bag of coins contains pennies, dimes and quarters. There are twice as many dimes as pennies and three times as many quarters as dimes. An amount of money which could be in the bag is
Answer Choices:
A.
B.
C.
D.
E.
Solution:
If the bag contains pennies, dimes and quarters, then and . Thus . If is the worth of the coins in cents, then . Of the answers given, only (C) is a multiple of .