A milkman pays tk. 6.40 per liter of milk. He adds water and sells the mixture at tk. 8per liter. By doing this, he makes 37.5% profit. Find the proportion of water to milk received by the customers?

A leading library charges c cents for the first week that a book is loaned and f cents for each day over one w...

Find the compound interest at the rate of 10% per annum for four yearss on the principal which in four years a...

A wheel rotates 10 times per minutes and moves 20 m during each rotation . How many feet does the wheel move i...

An Amount of tk. 366 is to be divided among P,Q and R in such a manner that Q gets two- third as much as P and...

On dividing an individual number by 342, we get 47 as remainder. If the same number is divided by 18, what wil...

In an office , 44% of the workers prefer coffee and 72% prefer tea. If each of them prefers coffee or tea and...