Mayank bought a ball for Rs `20` . He sold it for Rs `30` and again bought it back for Rs `40` . Again he sold It Rs. `50` . Did he gain or lose ? By how much did he gain or lose ?

A chair is bought for Rs. 450 and sold at Rs. 740. Find the gain percent

Oranges are bought at 6 for Rs. 20 and sold at 4 for Rs. 18. Find the gain or loss per cent.

A man bought some pencils for Rs 30 and some pens for Rs. 90 . The next day he again bought some pencils for Rs. 25. Then , he sold all the pencils for Rs. 20 and the pens for Rs. 70 . What was his net gain or loss ?

Mohan Lal purchased an old scooter for Rs. 12000 and spent Rs. 2850 on its overhauling. Then, he sold it to his friend Sohanbir for Rs. 13860.How much per cent did he gain or lose?

Raju bought a book for Rs 35.65. He gave Rs 50 to the shopkeeper.How much money did he get back from the shopkeeper?

Raju bought a book for Rs 35.65. He gave Rs 50 to the shopkeeper. How much money did he get back from the shopkeeper?

Raghu bought an almrah for Rs. 6250 and spent Rs.375 on its repairs. Then, he sold it for Rs. 6890. Find his gain or loss per cent.

Manjit bought an iron safe for Rs. 12160 and paid Rs. 340 for its transportation. Then, he sold it for Rs.12875.Find his gain per cent.