Question

16. Usha bought 16 dozen ball pens and sold them at a loss equal to S.P. of 8 ball pens. Find
(i) her loss per cent
(ii) S.P. of I dozen ball pens, if she purchased these 16 dozen ball pens for 576​

Answer 1

Answer:

Let the S.P. of one dozen pens be Rs. x.  

Then S.P. of 16 dozen pens = Rs. 16x, Loss = S.P. of 4 dozen pens = Rs. 4x

∴ C.P. = S.P. + Loss = Rs. 16x+ Rs. 4x= Rs. 20x

∴ Loss per cent =(  

20x

4x

​

×100)=20%

C.P. of 16 dozen pens = Rs. 240, Loss =20%  

∴  

100

240×80

​

= Rs. 192

∴ S.P. of 1 dozen pens = Rs.  

16

192

​

 = Rs. 12

Step-by-step explanation: