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There are 80 coins, among them one coin weighs less compared
to other. You are given a physical balance to weigh. In how
many wieghings the odd coin can be found.
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Answer Posted / saranya
The answer is 4....The minimum weighings required is 4.
Its like this...split 80 into 40 and 40 .We can find the the
40 which has the least weight.Next split this 40 into 20 and
20 ...Then split the one that weighed less into 10 and
10....Similarly We can find the one which is less by 6
weighing. But the answer is 4(The monimum weighing)
Can anyone tel me how?
| Is This Answer Correct ? | 18 Yes | 18 No |
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