If a clock strikes appropriate number of times at each hour, how

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 Multiple Choice QuestionsMultiple Choice Questions

1.

A 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

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2.

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.

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3.

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

  • 1.30 at night, after 130 days
  • 1.30 at night, after 130 days
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4.

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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