Question

13) Ball-point pens were sold at a loss of 20%. If they
had been sold at 370 more, there would have
been a gain of 3-%. Find the cost price. please answer
​

Answer 1

Your question is wrong instead of 370 it will be rs 70

Answer:

Let the cost price of the pen be X.

20% of X = (20/100)*X=X/5

Selling at 20% loss = X-X/5=4X/5

Selling for 70 more gives profit of 10/3%

Profit %=(profit/C.P)*100

And profit = S.P-C.P=(4X/5 + 70) - X

= 70 - X/5

Therefore 10/3 = {(70- X/5)/X}*100

On solving for X, we get X=300.

Hence the answer is 300

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