SOLUTION: Ann can solve 48 problems in 21 minutes, and Sara can solve 36 problems in 84 minutes . How many problems can Ann Solve in the same amount of time it takes Sara to solve 54 problem
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Question 1144970: Ann can solve 48 problems in 21 minutes, and Sara can solve 36 problems in 84 minutes . How many problems can Ann Solve in the same amount of time it takes Sara to solve 54 problems.
A)72
B)144
C)192
C)288
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
36/84 = 54/x
:
36x = 84 * 54 = 4536
:
x = 126 minutes
:
48/21 = y/126
:
21y = 48 * 126 = 6048
:
y = 288
:
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answer is C) 288
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