The average price of 10 pens is Rs. 12 while the average price of 8 of these pens is Rs. 11.75. Of the…
The correct choice is: “Rs. 10, Rs. 16” Total price of 10 pens = 10 × 12 = Rs. 120; of 8 pens = 8 × 11.75 = Rs. 94. The other two cost 120 − 94 = Rs. 26 together. If the…
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The average price of 10 pens is Rs. 12 while the average price of 8 of these pens is Rs. 11.75. Of the remaining two pens, if the price of one pen is 60% more than the price of the other, what is the price of each of these two pens?
Answer and explanation
Correct answer D
The correct choice is: “Rs. 10, Rs. 16”
Total price of 10 pens = 10 × 12 = Rs. 120; of 8 pens = 8 × 11.75 = Rs. 94. The other two cost 120 − 94 = Rs. 26 together. If the cheaper one costs x, the other costs 1.6x, so 2.6x = 26 and x = 10. The two pens cost Rs. 10 and Rs. 16.
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