If I have to measure all weights from 1 kg to 121 kg, what is
the minimum number of weights I should keep?
1.1 2.5 3.13 4.21
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Answer / aashish
1,3,9,27,81 are the required weights
1 can be measured with 1
2 can be measured with 3 by keeping 1on the other side
5 can be measured with 9 by keeping 3and 1 on the other side
6 can be measured with 9 by keeping 3 on the other side
7 can be measured with 9 and 1 by keeping 3 on the other side
SIMILARLY EVERYTHING CAN BE MEASURED
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / isaias
The first answer, powers of 3, is the correct one when it is allowed to put weights on both sides of the scale.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / vishnukings
Answer is 7.
number weights needed.
1, 2, 4, 8, 16, 32, 64.
this numbers when adding gives values from 1 to 121.
| Is This Answer Correct ? | 4 Yes | 8 No |
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