Exams

What is the diameter (in cm) of a sphere of surface area 6.16 sq cm?

The mean of the data 3, 10, 10, 4, 7, 10, 5 is

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark (?) in figure C.

The acceleration due to gravity at the surface of the earth (mass M and radius R) is proportional to ___.

Which Union Ministry is to set up a National Faceless Penalty Centre?

Which one of the following elements has the lowest atomic mass?

If Cosecθ + Cotθ = 2, then Cotθ = ?

Two pipes A and B can fill an empty cistern in 18 and 27 hours, respectively. Pipe C can drain the entire cistern in 45 hours when no other pipe is in operation. Initially, when the cistern was empty Pipe A and Pipe C were turned on. After a few Pipe A was turned off and Pipe B was turned on instantly. In all, it took 55 hours to fill the cistern. For how many hours was Pipe B turned on?