In a mixture, the ratio of the milk and water is 6 : 5. when 22 liter mixture is replaced by water, the ratio becomes 9 : 13. Find the quantity of water after replacement.

A man covers a total distance of 100 km on bicycle . For the first 2 hours , the speed was 20 km / hr and for...

A man can reach a certain place in 40 hours . If he reduces his speed by 1/15th, he goes 5 km less in that tim...

A shopkeeper gains 17% after allowing a discount of 10% on the marked price of an article . Find his profit pe...

Aalm sold tow vehicles for Tk. 46000 each . If he gained 10% on the first and lost 10% on another , then what...

The profit earned after selling an article for Tk. 3,362 is the same as the loss incurred after selling the ar...

An article costs Tk. 500 and the marked price is mentioned as Tk. 800. What is the profit % for the seller it...