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Calendars and Clocks · Question 52 of 65

Question 52

EasyOriginal question

A table clock gains 2 minutes every day. It is set right at 10 a.m. on 1 March. By how many minutes will it be fast at 10 a.m. on 15 March?

Options for question 52

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. From 10 a.m. on 1 March to 10 a.m. on 15 March is 15−1=1415 - 1 = 14 days.

  2. Gain =14×2=28= 14 \times 2 = 28 minutes.

Worth noting

30 counts 15 days by including 1 March as a full day of gaining. The clock was correct at the start of 1 March's count.

Concept
Accumulated gain over whole days
Typical time
40 s
Your time
—
The rule this testsClocks that gain or lose
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Ten questions from Calendars and Clocks, at your own pace.

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Ten questions from Calendars and Clocks, at your own pace.

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