Exams

If 1/(cosecA ­ cotA) = x, then the value of x is

A solid sphere of diameter 7 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area ?

A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

Raj said, “I am happy to be here this evening.”

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

He gives everyone _________ the class opportunities for practice.

In the following question, select the related number from the given alternatives.
5 : 130 : : 6 : ?

The ratio of the weights of two spheres is 8 : 27 and the ratio of weights per 1 cc of materials of two is 8 : 1 . The ratio of the radii of the spheres is

60% of P = 50% of Q and Q = x% of P. What is the value of x?

Which greenhouse gas is produced by the raising of cattle?