At what time between 9 and 10 O'clock will the hands of a watch be together ?

Options

A. 45 min past 9
B. 491/11 min past 9
C. 48 min past 9
D. 47 min past 9

Answer

B

Explanation

To be together beween 9 and 10 O. clock, the minute hand. has to gain 45min. spaces 55min. spaces are gained in 60 min. 45 min.spaces are gained in (60/55 * 45) min. or 491/11 min.
The hands are together at 491/11 min. past 9.