Question

a Shop keeper purchases 40 notebooks and recovers the cost price after selling 30 out of them. he sells the remaining 10 notebooks at the profit of 40% and earn rs 160 as profit on them. what is the total selling price of the 40 notebooks? solution​

Answer 1

Step-by-step explanation:

The solution for this question is attached Answer : 2160

Answer 2

Selling price of 40 books = 2133.33 Rs

Given:

A Shopkeeper purchases 40 notebooks and recovers the cost price after selling 30 out of them.

He sells the remaining 10 notebooks at the profit of 40% and earn rs 160 as profit on them.      

To find:

Gain or loss after whole process

Solution:

Let x Rs be the cost of 1 note book

Cost of 40 notebooks = 40x Rs

On selling 30 notebooks he recovered the cost price of 30 books

⇒ selling price of 30 Notebooks = 40x Rs

Remaining 10 notebooks at profit 40% earned 160 Rs

Here, cost price of 10 books = 10x

On 10x at rate 40% he got 160 Rs

⇒  profit of 40% on 10x = $\frac{40}{100} (10x)$ = 4x

From given data profit on 10 books = 160 Rs

⇒ 160 Rs  = 4x

⇒ 40 Rs  

∴ cost price of 1 book = 40Rs

Cost price of 40 books = 1600

Given that selling price of 30 books = cost price of 40 books

⇒ selling price of 30 books = 1600

⇒ Selling price of 40 books = $\frac{1600}{30} (40)$ = 2133.33 Rs

Selling price of 40 books = 2133.33 Rs

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