1.

If the cost price of 12 pens is equal to the selling price of 16 pens, find the loss per cent.

Answer»

Let × be the CP of Pen 

SP of 1 pen = x/16 

CP of 1 Pen = x/12 

Loss = CP – SP = x/12 – x/16 = x/48

\(Loss\%=\frac{Loss\,\times\,100}{CP}\)

\(=\frac{\frac{x}{48}\times100}{\frac{x}{12}}\)

= 25%



Discussion

No Comment Found