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Question

At what time between 6 a.m. and 7 a.m. will the minute hand and hour hand of a clock make an angle 59 ?

A
6:21 a.m.
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B
6:24 a.m.
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C
6:23 a.m.
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D
6:22 a.m.
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Solution

The correct option is D 6:22 a.m.
At 6:00 a.m., the initial angle between minute and hour hand is 180.
We know that the angle made by hour hand in 1 minute is (3060) and angle made by minute hand in 1 minute is (36060).

Let us assume that after x minutes, the angle is 59.
59=180(36060)x+(3060)x
59=1806x+0.5x
x=22 min
Therefore, required time is 6:22 a.m.

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