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B
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Difficulty—
If during a one-day period the \(Q\) train arrives at the station \(30\%\) less frequently than the \(B\) train, and the \(B\) train arrives \(10\%\) less frequently than the \(F\) train, then the \(Q\) train’s frequency is what percent of the \(F\) train’s frequency?
A. \(27\)
B. \(40\)
C. \(60\)
D. \(63\)
E. \(90\)
The OA is D
A. \(27\)
B. \(40\)
C. \(60\)
D. \(63\)
E. \(90\)
The OA is D
