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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 Posted / 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 |
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A gardener plants 100 meters towards east, next 100 meters towards north,next 100 meters towards west. 98 meters towards east, 96 meters towards north and 96 meters towards west, 94 towards west. 98 meters towards east, 96 meters towards north and 96 meters towards west, 94 meters towards south. and 94 meters towards east and so on. If a person walks between the trees what is the total distance travelled by him before he reaches the center.
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The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in the original number, but they are in reverse order. The ten's place of the original number is equal to twice the difference between its digits. What is the number?
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