The cost price of 19 articles is same as the selling price of 29 articles. What is loss percentage?

A tank is filled in 5 hours by three pipes A,B and C The pipe C is twice as fast as B and B is twice as fast a...

What is the rate of simple interest for the first 4 years if the sum of TK. 360 becomes TK. 540 in 9 years and...

What is the amount of equal installment , if a sum of TK. 1428 due 2 years hence has to be completely has to b...

There is provision of food in fort for 1200 soldiers for 60 days .After 15 days . 200 soldiers leave the fort...

If 2 men or 3 women or 4 boys can do a piece of work in 52 days, then the same piece of work will be done by 1...

In a zoo, there are Rabbits and Pigeons. It heads are counted s, there are 200 and if legs are counted there a...