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3 years ago

Q10) A book was sold for Rs. 550 with a profit of 10%. What was its cost price? *

Mathematics

1 answer:

stealth61 [152]3 years ago

6 0

Answer:

CP = Rs 500

Step-by-step explanation:

Given that,

Selling price of a book, SP = Rs 550

Profit percent = 10%

We need to find the cost price of the book. The formula for profit percent is given by :

$P\%=\dfrac{SP-CP}{CP}\times 100\\\\\dfrac{10}{100}=\dfrac{550-CP}{CP}\times 100\\\\\dfrac{1}{10}=\dfrac{550-CP}{CP}\\\\CP=5500-10CP\\\\CP+10CP=5500\\\\11CP=5500\\\\CP=500$

So, the cost price of the book is Rs 500.

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3 years ago

Q10) A book was sold for Rs. 550 with a profit of 10%. What was its cost price? *​

Q10) A book was sold for Rs. 550 with a profit of 10%. What was its cost price? *