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You have 9 lemons, which all look precisely identical. Same peak, identical shade… There isn’t any seen distinction between any of them.
All lemons weigh the identical quantity, aside from one, which weighs rather less than the others.
You are allowed to make use of a scale to check weight, however you possibly can solely use the dimensions at most 2 occasions.
Can you discover the lemon that weighs lower than the others?
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requested Nov 22, 2017 at 10:14
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It might be
Take teams of three lemons every (say A, B and C) and weigh which ought to present you the required lemon
As,
First weight two teams of three lemons every – say A and B. If they develop into identical weight – which signifies that the required lemon just isn’t in both of those teams. Then weight two lemons of group C – which can lead to lemons of identical weight being weighed – means the unnoticed one is the required one in any other case it reveals up within the stability.
If
each the teams A and B don’t weigh the identical, determine the lesser weighing group (say B) and weigh two lemons of B and repeat the above course of to seek out out the much less weighing lemon.
answered Nov 22, 2017 at 10:27
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