Question

By selling a pen for 15rs,a man loses one-sixteenth of what it costs m.find the cost price of pen

Answer 1

Hi dear,

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Let the cost price of pen was x.

By selling that pen at Rs.15 that man loses 1/16 th part of the cost price.

   = 1/16 of cost price

   = x * 1 / 16

  = x / 16.

We know that,

 Cost price - loss = Sell price

 x - x /16  = Rs.15

 16x - x
 ------------- = Rs.15
      16


15x / 16 =   Rs.15

15x = ( Rs. 15 * 16 )

 x = ( Rs.15 * 16 ) / 15

 x = Rs.16

So, the cost price of pen was Rs.15