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N76 [4]
3 years ago
5

13. (a) A man bought two books for Rs 1040. He sold one at a loss of 15% and other at a profit of 36%

Mathematics
1 answer:
gavmur [86]3 years ago
8 0

Answer:

Let the price of one book be Rs. x

price of next book is = 1040 - X

C.P of 1st book is Rs. x

Loss = 15%

S.P of 1st book = 85x / 100

C.P of 2nd book = 1040 - X

Profit = 36%

S.P of 2nd book = (1040 - x × 136)/100

(85x)/ 100 - (1040 - x × 136) / 100

85 x= 1040 x 136 - 136 x

85 x + 136 x= 1040 × 136

221 x = 1040 x 136

X = (1040 x 136) / 221

X = 640

So, Cost price for 1st book is 640 Rs. and 2nd book is 1040 - 640 = 400 Rs.

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3 years ago
On six books shelves there are 72 books per shelf.How many books are there altogether? If 1/3 of these are non-fiction how many
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<h2>Answer:</h2><h3>Part 1:</h3>

Given:

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Solution:

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Fiction books = 1/3 of total books

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Nonfiction books = Total books - 1/3 of total books

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