A bookseller buys 150 books at ₹ 50 per book. He makes 4% profit by selling all the books. Find the selling price of 100 books

A bookseller procures 40 books for ₹ 3200 and sells them at a profit equal to the selling price of 8 books. What is the selling price of one dozen books, if the price of each book is same?

The cost price of 36 books is equal to the selling price of 30 books .The gain is:

If a book bought for ₹500 is sold to make a profit of 25% , then the selling price is

The cost price of 8 books is equal to the selling price of 6 books.Find the gain per cent.

If a book bought for Rs.500 is sold to make a profit of 25%, then the selling price is

A shopkeeper buys two books for Rs. 300. He sells the first book at a profit of 20% and the second book at a loss of 10%. What is the selling price of the first book if in the whole transaction there is no profit or no loss?