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- List the given numbers and units.
- Choose the formula that matches the asked value.
- Simplify carefully and compare with options.
Correct Answer: B
Correct Answer: B
Method / Topic: Mixture and Alligation
The answer follows from the arithmetic relation between the given values.
Short Explanation
Detailed Explanation
Correct Answer: B
Method / Topic: Mixture and Alligation
The total cost of 45 litres of milk is 45 × Rs. 60 = Rs. 2700. Water is free, so adding water does not change the total cost. For the final mixture to cost Rs. 45 per litre, its total volume must be 2700 ÷ 45 = 60 litres. Therefore, water added = 60 − 45 = 15 litres. Hence, the correct
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Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Shortcut used, common trap, and the fastest solving route
- List the given numbers and units.
- Choose the formula that matches the asked value.
- Simplify carefully and compare with options.
How many litres of water should be added to 45 litres of milk costing Rs. 60 per litre so that the cost of the mixture becomes Rs. 45 per litre?
Explanation
Correct Answer: B
Method / Topic: Mixture and Alligation
The answer follows from the arithmetic relation between the given values.
Short Explanation
Detailed Explanation
Correct Answer: B
Method / Topic: Mixture and Alligation
The total cost of 45 litres of milk is 45 × Rs. 60 = Rs. 2700. Water is free, so adding water does not change the total cost. For the final mixture to cost Rs. 45 per litre, its total volume must be 2700 ÷ 45 = 60 litres. Therefore, water added = 60 − 45 = 15 litres. Hence, the correct
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