Arithmetic Ability
Clocks

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Q.

How many minutes does a watch lose per day, if its hands coincide every 64 minutes ?

View Answer

Correct choice: B

Explanation:

55 min. spaces are covered in 60 min. 60 min. spaces are covered in (60 / 55x 60)min. = 65 5/11 min. Loss in 64 min. = (65 5/11-64) = 16 / 11 min. Loss in 24 hrs =(16 / 11 x 1 / 64x 24 x 60) min. = 32 8 / 11 min.
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