S Purkayastha Solutions for Chapter: Percentage and Its Applications, Exercise 3: CHECK POINT

A shopkeeper buys $20$ quintals of wheat. He sells $6$ quintals at $15\%$ profit, $8$ quintals at $20\%$ profit and disposes of the rest for $25\%$ profit. His total gain was $₹2000$. At what price per quintal did he buy the wheat?

 If the selling price of $10$articles is equal to the cost price of $11$articles, find the gain per cent.

By selling $100$oranges, a vendor gains a profit equal to the selling price of $20$oranges. Find his gain per cent.

 By selling $36$bananas, a vendor suffers a loss equal to the selling price of $4$ bananas. Find his loss per cent.

By selling an article for $₹144$, a man loses th of his $\frac{1}{7}th$ outlay. If it is sold for $₹189$, what is the gain or loss per cent?

A shopkeeper buys pencils at $10$ for $₹10$and sells them at $8$ for $₹10$. Find the gain per cent.
 

Mohit bought $100$erasers for $₹250$. He was not very good at calculations and made a mistake in fixing his selling price. When he sold his erasers, he incurred a total loss equal to the selling price of $25$erasers. Find his loss per cent.

Prakash buys equal quantities of two kinds of oranges at the rate of $6$ for a rupee and $9$ for a rupee. He mixes them together and sells the whole lot at $8$ for a rupee. Find his gain or loss per cent.