Three athletes X, Y and Z start running around a circular track of length 60m from the same point simultaneously in the same direction at speeds of 3 m/s, 5 m/s, and 9 m/s respectively. After how long will they meet for the first time after they started running?

A garments factory employs 3 categories of workers K, M and N. The efficiency of the 3 categories of workers t...

A rectangular field of 200m by 120m has two roads running along its center, one along the length and the other...

Among the 120 students of a class, numbered 1 to 120, all even numbered students opt for Bangla, whose numbers...

A shopkeeper makes a loss of 12% by selling an item at 80% of its marked price. What will be the percent profi...

The arithmetic mean of the 5 consecutive integers starting with 'p' is 'q'. What is the arithmetic mean of 9 c...

If the average of 5 consecutive integers is 12, what is the sum of the smallest and the largest of the 5 integ...