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Hourglasses Measure Puzzle

Hourglasses Measure Puzzle - 3 April

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

For Solution : Click Here

1 comment:

  1. Start both the hourglasses same time. When 7 minutes fineshes, turn the 11 minute hourglass down. It will finish in 4 minutes. Then turn it down again and it will mesure 11 minutes. Thus 4 + 11 = 15 minutes

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