Rafia ran from her house to school at an average speed of 6 miles per hour and returned along the same route at an average speed of 4 miles per hour . If it took her one hour in total to run to the school and come back, how many minutes did it take her to run from her house to school?

Afia can do her term paper in 15 days which takes Babul 20 days to finish . What is the fraction of work left...

3 , 12, 30,. 39 are the first five terms of a sequence . Each term after the first is obtained by adding 9 to...

At a party, everyone shook hands with everybody else. If there were 66 handshakes, how many people were at the...

What is the minimum number of chocolates that must be added to an existing stock of 966 chocolates, so that th...

In a college, 45% of the students are boys. If 40% of the boys and 20% of the girls went on a picnic, what per...

present age of Farzana is thrice the present age of Samira who is 20. How many years ago were the age of Farza...