Advertisements
Advertisements
Question
By selling a book for Rs 258, a bookseller gains 20%. For how much should he sell it to gain 30%?
Advertisements
Solution
\[\text { Selling price of the book = Rs } . 258\]
\[\text { Gain % = 20 % } \]
\[\text { Since, C . P }= \left[ \frac{100}{\left( 100 +\text { Gain % } \right)} \times S . P \right]\]
\[ = \left[ \frac{100}{\left( 100 + 20 \right)} \times 258 \right]\]
\[ = \frac{25800}{120}\]
\[ = Rs . 215\]
\[\text { Let the bookseller sells it for Rs . x }\]
\[\text { So, S . P } = \left[ \frac{\left( 100 + \text { Gain % } \right)}{100} \times C . P \right]\]
\[x = \frac{100 + 30}{100} \times 215\]
\[ = \frac{130 \times 215}{100}\]
\[ = Rs . 279 . 50\]
\[\text{Therefore, the bookseller must sell the book at Rs 279 . 50 to make 30 % profit } .\]
APPEARS IN
RELATED QUESTIONS
The cost price of 10 articles is equal to the selling price of 9 articles. Find the profit percent.
A dealer buys a wristwatch for Rs 225 and spends Rs 15 on its repairs. If he sells the same for Rs 300, find his profit percent.
A dishonest shopkeeper professes to sell pulses at his cost price but uses a false weight of 950 gm for each kilogram. Find his gain percent.
The cost price and selling price are given in the following table. Find out whether there was a profit or a loss and how much it was.
| Cost Price (in Rs.) |
Selling Price (in Rs) |
Profit or Loss | How much? |
| 1000 | 920 |
Using the figures given below, frame problems based on profit percent or loss percent.
Seeds worth ₹ 20500, labour ₹ 9700, chemicals and fertilizers ₹ 5600, selling price ₹ 28640.
A branded Air-Conditioner (AC) has a marked price of ₹ 38000. There is a condition given for the customer.
Discount of 8% on the marked price but no free gifts. 
A man bought 400 metre of cloth for ₹ 60,000 and sold it at the rate of ₹ 400 per metre. Find his profit or loss
In case of loss, `C.P. = (100 xx S.P.)/(100 + Loss%)`
A fruit seller purchased 20 kg of apples at ₹ 50 per kg. Out of these, 5% of the apples were found to be rotten. If he sells the remaining apples at ₹ 60 per kg, then his ______ is ______%.
Under GST ‘value addition’ refers to ______.
