| A grocer buys 80 kg of sugar at Rs. 25 per kg ace mixes it with 120 kg of sugar at Rs. 20 per kg. A: what rate per kg should be sell the mixture t: gain 15% on the whole? |
A) Rs. 24.50
B) Rs. 24.80
C) Rs. 25.30
D) Rs. 26.50
Correct Answer: C
Solution :
| Total cost of mixture of sugar |
| \[=80\times 25+120\times 20\] |
| \[=2000+2400=\text{Rs}\text{. 4400}\] |
| To gain 15%, \[SP=\frac{115}{100}\times 4400=\text{Rs}\text{.}\,\,\text{5060}\] |
| \[\therefore \]\[SP=\frac{5060}{120+80}=\frac{5060}{200}=\text{Rs}\text{. 25}\text{.30}\,\,per\,\,kg\] |
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