A man sold a horse at 10% profit. Had he bought it at 20% less and sold for Tk. 10 more, he would have made a profit of 40%. What is the cost price of the horse?

A and B can do a piece of work in 12 days while A alone can do it in 20 days. How long will B alone take to fi...

A gardener plants 17956 trees in such a way that there are as many rows as the number of trees in a row. What...

Two numbers are in the ratio 5:4 and their difference is 10. What is the largest number ?

Raina is twice as old as Saima. Three years ago, Raina was three times as old as Saima. How old is Raina now ?

Four persons can complete a job in 8 days. After four days two persons have left the work. How many days would...

Two friends M and N have 40% and 60% shares in a business. After some time a third friend joined the business...