Multiple Choice QuestionsA clock gains 15 minutes per day. If it is set right at 12 noon, the time it shows at 4 AM is
4.20 AM
4.30 AM
4.02 AM
4.02 AM
If a clock strikes appropriate number of times at each hour, how many times will it strike a day?
300
156
68
68
B.
156
Clock will strike 1 time at 1, 2 times at 2, 3 times at 3, and so on up through 12 times at 12.
This makes 1+2+3+4+5+6+7+8+9+10+11+12=78 times every 12 hours.
i.e. it strikes (78 x 2) = 156 times in 24 hours.
A wall clock gains 2 minutes in 12 hours, while a table clock loses 2 minutes every 36 hours. Both are set right at 12 noon on Tuesday. The correct time when both show the same time next would be
12.30 at night, after 130 days
12 noon, after 135 days
The circular measure of the included angle formed by the hour hand and minute hand of a clock at 3 p.m. will be
π/4
π/3
5π/12
π/2
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