# Shabana Bought 16 Dozen Ball Bens and Sold Them at a Loss Equal to S.P. of 8 Ball Pens. Find Her Loss Percent. - Mathematics

Shabana bought 16 dozen ball bens and sold them at a loss equal to S.P. of 8 ball pens. Find her loss percent.

#### Solution

$\text { Number of pens bought = 16 }\times 12 = 192$

$\text { Let the S . P of one pen be Rs } . x .$

$\text { Therefore, S . P of 192 pens = Rs . 192x }$

$\text { S . P of 8 pens = Rs . 8x }$

$\text { It is given that S . P of 8 pens is equal to the loss on selling 192 pens }.$

$\text { Therefore, loss = Rs . 8x }$

$\text { C . P of 192 pens = Rs . 576 }$

$\text { So, loss = C . P - S . P }$

$8x = 576 - 192x$

$200x = 576$

$x = \frac{576}{200} = 2 . 88$

$\text { Therefore, loss }= 8\left( 2 . 88 \right) = Rs . 23 . 04$

$\text { Loss % = }\frac{loss \times 100}{C . P}$

$= \frac{23 . 04 \times 100}{576}$

$= \text { 4 % }$

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#### APPEARS IN

RD Sharma Class 8 Maths
Chapter 13 Proft, Loss, Discount and Value Added Tax (VAT)
Exercise 13.1 | Q 22.1 | Page 12