Advertisements
Advertisements
प्रश्न
By selling a book for Rs 258, a bookseller gains 20%. For how much should he sell it to gain 30%?
Advertisements
उत्तर
\[\text { Selling price of the book = Rs } . 258\]
\[\text { Gain % = 20 % } \]
\[\text { Since, C . P }= \left[ \frac{100}{\left( 100 +\text { Gain % } \right)} \times S . P \right]\]
\[ = \left[ \frac{100}{\left( 100 + 20 \right)} \times 258 \right]\]
\[ = \frac{25800}{120}\]
\[ = Rs . 215\]
\[\text { Let the bookseller sells it for Rs . x }\]
\[\text { So, S . P } = \left[ \frac{\left( 100 + \text { Gain % } \right)}{100} \times C . P \right]\]
\[x = \frac{100 + 30}{100} \times 215\]
\[ = \frac{130 \times 215}{100}\]
\[ = Rs . 279 . 50\]
\[\text{Therefore, the bookseller must sell the book at Rs 279 . 50 to make 30 % profit } .\]
APPEARS IN
संबंधित प्रश्न
If the selling price of 10 pens is equal to cost price of 14 pens, find the gain percent.
Jyoti and Meena run a ready-made garment shop. They mark the garments at such a price that even after allowing a discount of 12.5%, they make a profit of 10%. Find the marked price of a suit which costs them Rs 1470.
From a wholesaler, Santosh bought 400 eggs for Rs 1500 and spent Rs 300 on transport. 50 eggs fell down and broke. He sold the rest at Rs 5 each. Did he make a profit or a loss? How much?
Using the figures given below, frame problems based on profit percent or loss percent.
Cost price ₹ 2000, selling price ₹ 1900
A mobile phone is sold for ₹ 8400 at a gain of 20%. The cost price of the mobile phone is ________
If the selling price of 10 rulers is the same as the cost price of 15 rulers, then find the profit percentage
Find the unknowns x, y and z.
| Name of the item | Marked Price | Selling Price | Discount |
| LED TV | y | ₹ 11970 | 5% |
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. 
The single discount in % which is equivalent to two successive discounts of 20% and 25% is
If 20 lemons are bought for ₹ 10 and sold at 5 for three rupees, then ______ in the transaction is ______ %.
