1.

7 kg of tea costing Rs. 280 per kg is mixed with 9 kg of teacosting Rs. 240 per kg. The average price per kg of mixedtea is ?280 रुपये प्रति किग्रा. की 7 किग्रा. चाय को 240 रूपये प्रति किग्रा. की9 किग्रा. चाय के साथ मिलाया जाता है। मिश्रित चाय का औसत मूल्य प्रतिकिग्रा. बताए ?(a) Rs. 255.80(b) Rs. 257.50(c) Rs 267 20(d) Rs. 267.50

Answer»

Cost of 7 kg of tea = Rs 280 per kg

Cost of 9 kg of tea = Rs 240 per kg

Then,Average price per kg of mixed tea = (7*280 + 9*240)/16= (1960 + 2160)/16= 4120/16= Rs 257.5

(b) is correct option

Right answer is (b) Rs.257.50.



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