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These problems relate to objects of different weight, and using a balanced scale to determine the odd item, be it a false coin, or an under-filled sack of grain. (Usually it's coins though)
Antoine has been given 3 Hourglasses H1, H2, and H3 which are respectably able to measure out precisely 11 minutes, 15 minutes, and 17 minutes.
• Antoine is asked to measure out precisely 23 minutes, and he is permitted to use any 2 of the 3 hourglasses to perform this task.

What choice of 2 hourglasses will enable Antoine to achieve the said objective in a minimum number of steps?

Provide valid reasoning for your answer.

(No Solution Yet, 2 Comments) Submitted on 2024-07-15 by K Sengupta   
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