Exams

Two pipes P and Q can fill an empty tank in 25 hours and 20 hours respectively. Pipe R alone can empty the completely filled tank in 50 hours. Firstly both the pipes P and Q are opened and after 8 hours pipe R is also opened. What will be the total time (in hours) taken to completely fill the tank?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

BEG, DGI, FIK, HKM, ?

In a certain code language, “TOLDER” is written as “WSQGIW”. How is “SPIRAL” written in that code language?

A well of diameter 3 m and depth 14 m is dug. The earth, taken out of it, has been evenly spread all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of embankment?

Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic table?

If -3%1 = 3, 3%6 = -18 and -7%4 = 28, then find the value of -2%9 = ?

How many atoms will one mole of Carbon (C-12) contain?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

AT, CR, FO, JK, ?