Question

Maths Profit and loss-
1) The cost price of an article is 5/4 times its selling price... Find the loss or gain percent.

2) Manju bought a certain number of books for Rs.600. She sold 1/4th of them at 5% loss. At what price should she sell the remaining books to gain 10% on the whole?

Answer 1

Given, C.P. of the books = Rs. 600

⇒ C.P. of one − fourth of books = Rs.

4

600

= Rs. 150

Loss on one − fourth of books =5 %

So, Loss % =

C.P.

C.P.−S.P.

×100=5

⇒

150

150−S.P.

×100=5

⇒150− S.P. =7.5

⇒ S.P. = Rs. 142.50

Hence, Selling price of one − fourth of books = Rs. 142.50

Now, Profit on the whole % = C.P.

S.P.−C.P

×100=10

⇒

600

S.P.−600×100=10

⇒ S.P. −600=60

⇒ S.P. = Rs. 660

Thus, selling price of remaining books = Rs. 660− Rs. 142.50= Rs. 517.50.

Step-by-step explanation:

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