Rishi bought 30 kg of sugar at the rate of Rs. 9 per kg and 45 kg of sugar at the rate of Rs. 10 per kg. He mixed both type of sugar and sold the mixture at the rate of Rs. 9.75 per kg. What was his gain or loss in the selling of whole sugar?

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Solution

Total quantity of sugar $= 45 + 30 = 75$
Gain or loss can be calculated as
$9.75 \times 75 - (30 \times 9 + 45 \times 10)$
$= 731.25 - 720 = 11.25$
Hence, in the overall transaction, Rishi got Rs. $11.25$ gain.

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Rishi bought 30 kg of sugar at the rate of Rs. 9 per kg and 45 kg of sugar at the rate of Rs. 10 per kg. He mixed both type of sugar and sold the mixture at the rate of Rs. 9.75 per kg. What was his gain or loss in the selling of whole sugar?

Total quantity of sugar =45+30=75Gain or loss can be calculated as9.75×75−(30×9+45×10)=731.25−720=11.25Hence, in the overall transaction, Rishi got Rs.11.25 gain.

Total quantity of sugar $= 45 + 30 = 75$
Gain or loss can be calculated as
$9.75 \times 75 - (30 \times 9 + 45 \times 10)$
$= 731.25 - 720 = 11.25$
Hence, in the overall transaction, Rishi got Rs. $11.25$ gain.