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Question

Cost of 6 kg of wheat is Rs 72. What will be the cost of 1 kg of wheat?
  1. Rs 12
  2. Rs 432
  3. Rs 78
  4. Rs 96


Solution

The correct option is A Rs 12
This is a classic case of the simple unitary method. If the cost of 6kg of wheat is Rs 72, the cost of 1kg will simply be Rs 72 divided into 6 parts. So we have,
Cost of 1 kg = 72/6 = Rs 12

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