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Question

We need weights weighing 500 grams each to balance a sack of rice weighing 1 kg.
  1. 2
  2. 3
  3. 4
  4. 10


Solution

The correct option is A 2
When the weights on both pans are equal, the beam of a balance balances.

When we place the sack of rice weighing 1 kg on one pan of the balance, the weight on the other pan should also be 1 kg for the beam to balance.

We know that 1 kg=1000 g.

We need 1000500=2 weights of 500 grams to each on the other pan.

 

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