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
Answer Posted / 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
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