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Resources tagged with Clock similar to Weekly Problem 5 - 2010:

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Challenge level: Challenge Level:1 Challenge Level:2 Challenge Level:3

Other tags that relate to Weekly Problem 5 - 2010
Visualising. Time. Length/distance. Clock. Speed. Mathematical modelling.

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Broad Topics > Mathematics Tools > Clock

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Digital Times

Stage: 3 Challenge Level: Challenge Level:1

Which segment on a digital clock is lit most each day? Which segment is lit least? Does it make any difference if it is set to 12 hours or 24 hours?

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Hands Together

Stage: 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Sometime during every hour the minute hand lies directly above the hour hand. At what time between 4 and 5 o'clock does this happen?

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On Time

Stage: 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

On a clock the three hands - the second, minute and hour hands - are on the same axis. How often in a 24 hour day will the second hand be parallel to either of the two other hands?

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Clocked

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Is it possible to rearrange the numbers 1,2......12 around a clock face in such a way that every two numbers in adjacent positions differ by any of 3, 4 or 5 hours?