Exams

K can lay Highway road between two cities in 16 days. L can do the same job in 12 days. With the help of M, they completes the job in 4 days. How much days does it take for M alone to complete the work ?

I am a ball that can be rolled, but never bounced or thrown. What am I?

36 identical books must be arranged in rows with the same number of books in each row. Each row must contain at least three books and there must be at least three rows. A row is parallel to the front of the room. How many different arrangements are possible ?

A goods truck travels from a place at a certain time and at fixed speed. After 6hrs another truck leaves the same place and move in same direction of uniform speed of 90kmph. The truck catches up the goods truck in 4hrs. Find the speed of the goods truck ?

Consider the argument and decide which of the given assumptions is/are implicit.

Argument :

With immediate effect, the government asked to shut down all the schools for one week in the region due to severe cold wave.

Assumptions:

1. The cold wave may continue for one week.

2. Concerned parents may not allow their children to attend the school after one week also.

Which layer of the atmosphere contains the ozone layer?

If the area of three Adjacent faces of a cuboidal box are 120 cm², 72 cm², and 60 cm² respectively, then the volume of the box is

If J is the interest on K and K is the interest on L, the rate and time is the same on both the cases. What is the relation between J, K and L  ?