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Rita buys 5 sarees at an average cost of Rs. 2250. If she buys three more sarees at an average cost of Rs. 2750, what will be the average (in Rs) of all the sarees she buys?

Rita buys 5 sarees at an average cost of Rs. 2250. If she buys three more sarees at an average cost of Rs. 2750, what will be the average (in Rs) of all the sarees she buys? Correct Answer 2437.5

Average cost of 5 sarees = Rs. 2250

Sum of cost of 5 sarees = 2250 × 5 = 11250

Similarly, sum of cost of other 3 sarees = 2750 × 3 = 8250

Sum of all 8 sarees = 11250 + 8250 = 19500

Average cost of all 8 sarees = 19500/8 = Rs. 2437.5

∴ The average (in Rs) of all 8 sarees = Rs. 2437.5

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