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If the cost of 5 kg of rice is Rs. 200, what is the cost of 8 kg? (2020)

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Question: If the cost of 5 kg of rice is Rs. 200, what is the cost of 8 kg? (2020)

Options:

  1. 320
  2. 400
  3. 360
  4. 280

Correct Answer: 320

Exam Year: 2020

Solution: 

Cost per kg = 200 / 5 = 40. Cost of 8 kg = 40 * 8 = 320.

If the cost of 5 kg of rice is Rs. 200, what is the cost of 8 kg? (2020)

Practice Questions

Q1
If the cost of 5 kg of rice is Rs. 200, what is the cost of 8 kg? (2020)
  1. 320
  2. 400
  3. 360
  4. 280

Questions & Step-by-Step Solutions

If the cost of 5 kg of rice is Rs. 200, what is the cost of 8 kg? (2020)
  • Step 1: Find the cost of 1 kg of rice by dividing the total cost by the total weight. So, divide 200 by 5.
  • Step 2: Calculate the cost per kg: 200 / 5 = 40. This means 1 kg of rice costs Rs. 40.
  • Step 3: To find the cost of 8 kg of rice, multiply the cost per kg by 8. So, calculate 40 * 8.
  • Step 4: Calculate the total cost: 40 * 8 = 320. This means 8 kg of rice costs Rs. 320.
  • Unit Cost Calculation – Understanding how to calculate the cost per unit and then use it to find the total cost for a different quantity.
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