the cost of 75 pens is rupees 63 7.50 find the cost of 23 pens. how many such pens can be bought for rupees 800 and how much money would be left?
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Cost of 75 pens = ₹637.50
Cost of 1 pen = 637.50 / 75 = 8.5
Cost of 23 pens = 8.5 × 23 = 195.5
Cost of 23 pens is ₹195.5
Pens bought from ₹800 = 8.50 / 800 = 0.0010625
Rupees left = 800 - 195.5 = 604.5
₹604.5 will be left
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