Exams

If x = (a/b) + (b/a), y = (b/c) + (c/b) and z = (c/a) + (a/c), then what is the value of xyz – x2 – y2 – z2?

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: One has to work hard to establish, develop and maintain deep and lasting bonds with those who matter in one’s life.
Q: As "Man is not an island entire of itself", he cannot be happy in isolation.
R: Humans live out their life in the company of their family, friends, colleagues, superiors, even total strangers in buses and lifts.
S: And, brick by brick, they must build their relationship with each one, to lay a secure foundation for their road to happiness.

The market structure called monopoly exists where there is exactly ______ seller in any market.

What is the reflection of the point (-1 , 3) in the line x = -4?

RNA is a polymeric molecule. What does RNA stand for?

The radius of a hemisphere is 7 cm, find its volume?

If a mirror is placed on the line MN, then which figure is the right image of the given figure?

In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.

Statements:
I. All dens are spiral.
II. Some spirals are cards.

Conclusions:
I. Some spirals are not cards.
II. Some dens are not cards.
III. Some cards are den.