Exams

Two pipes X and Y can fill an empty tank in 16 hours and 20 hours respectively. Pipe Z alone can empty the completely filled tank in 25 hours. Firstly both pipes X and Y are opened and after 6 hours pipe Z is also opened. What will be the total time (in hours) taken to completely fill the tank?

Women have shrill voice because of _______.

The human faeces is yellow in colour due to the presence of a pigment called

In the following question, out of the four alternatives, select the word similar in meaning to the word given.

Fustian

Bhutan does not share its border with which Indian state?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

50 + 5 - 700 x 28 = ?

The simplest value of 38-212+20318-227+45 is

If a3- b3= 91 and a - b = 1, then what is the value of ab?