Subject
Quantitative Aptitude
Topic
Miscellaneous
7 kg of rice costing Rs. 280 per kg is mixed with 9 kg of rice costing Rs. 240 per kg. The average price per kg of the mixed rice is :
7 kg of rice costing Rs. 280 per kg is mixed with 9 kg of rice costing Rs. 240 per kg. The average price per kg of the mixed rice is :
ক)
Rs. 189.5খ)
Rs. 240গ)
Rs. 257.5ঘ)
Rs. 238.5ঙ)
None of theseExplanation
Total cost of rice costing Rs. 280/kg = 280 × 7 = Rs. 1960 Total cost of rice costing Rs. 240/kg = 240 × 9 = Rs. 2160 ∴ Required average price of mixed rice = Rs. (1960+2160)/(7+9) per kg = Rs. 4120/16 per kg = Rs. 257.5 per kgRelated questions
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