Exams

If x = 1 – y and x2 = 2 – y2, then what is the value of xy?

In the following question, select the related number from the given alternatives.
3 : 27 : : 4 : ?

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P- And if I think about something which didn't happen I start thinking about all the other things which didn't happen.
Q- But there is only ever one thing which happened at a particular time and a particular place.
R- And there are an infinite number of things which didn't happen at that time and that place.
S- A lie is when you say something happened which didn't happen.

A cone of radius 3.5 cm and height 27 cm is completely filled with water. This water is emptied into an empty cylindrical vessel of radius 2.1 cm. What will be the height of water in this vessel? (Take π = 22/7)

In the following question, a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active Voice.

He could have solved the problem.

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

A place where animals are slaughtered for consumption as food.

DNA stands for _____.

If 2x + 6y = 3xy and 10x -­ 3y = 4xy, find x, y.