Question

Q:By selling
an article $ 240. Aman
loss 10% find his cp-​

Answer 1

$\rm\orange{Given:-}$

Selling price = Rs240

Loss = 10%

$\rm\orange{To~Find:-}$

Cost price = ?

Formula to find Cost price -

$\sf{ Cost \: Price \: = \dfrac{ S P \times 100 }{ 100 - loss\% } }$

Put the given values.

$C.P. = \dfrac{240 \times 100}{100-10}$

$C.P.= \dfrac{2400}{9}$

$C.P. = Rs266.67$

▬▬▬▬▬▬▬▬▬

Some Formulas :-

▪

$sp \: = \dfrac{cp(100 - l\%)}{100}$

This formula is used to find selling price when cost price and loss percent is given.

▪

$cp = \dfrac{(sp \times 100)}{100 + profit\%}$

This formula is used to find cost price when selling price and profit percent is given.

▪

$cp = \dfrac{(sp \times 100)}{100 - loss\%}$

This formula is used to find cost price when loss percent and selling price is given.

▪ Gain = SP - CP

▪ Loss = CP- SP

$gain\% = \dfrac{gain \times 100}{cp}$

▪

$loss\% = \dfrac{loss \times 100}{cp}$

■ Cost price is the price at which an item is bought by the seller.

■ Selling price is the price at which an item is sold by the seller.

Answer 2

$<font color= purple >$

AnSweR

.

.

➡.Let the cost price be x

Then, x−10 % x=240

90% x=240

x=240× 100/90

➡x=266.67

For a profit of 20%, the selling price should be = 266.67×120%

= 266.67×1.2=

➡cp= 320