Question

5. The cost of a ball pen is 8. How many such pens can Sheela buy with 315?
Will she be left with any money? If yes, how much?
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Answer 1

Purchase price of each pen = 1 rupee/ 8 = .125 Rs.

Profit needed = 60% on initial investment

Total selling price (if all sold) must be 1.60 Rs.

If he sells 8 pens then their individual prices should be = .200 Rs

Total money he needs to make from sale = 1 Rs

Number of pens to sell at .200 each to make 1Rs ?

5 pen.

Quick / logical way to solve.

Number of pens sold : 8 for 1 Rs

Number of pens to sell at 1 Rs total to make 60 percent profit = 8/ 1.6 = 5.

Answer 2

Hope it is Clear....

Mark as BRAINLIEST ANSWER

With Rs. 8 number of ball pens could be purchased = 1

Therefore, with Rs. 315 number of ball pens could be purchased = 315/8 = 39 pens

So, money left with her would be = Rs. 0.375