Three workers can do a job 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job alone?

The length of a room is 1.5 times of its breadth. If the area of the room is 216 sq. meter, what is the perime...

If the sum of 3 consecutive integers is 210, then the sum of the two smaller integers is :

What is 10% of y/3, if 2y/3 is 10% of 400?

A person is hired for a job that Tk. 500 per month and receives a 10% raise in each following month. In the fo...

A man and his wife have seven sons, and every one of the sons has a sister. How many are there in the family?

A bottle and a cork together cost a producer Tk 11. The bottle costs Tk 10 more than the cork. How much does t...