Questions

ΔPQR is right angled at Q. If m∠R = 60o, then find the value of (secP - 1/√3) 

If percentage of profit made,when an article is sold for Rs.78, is twice as when it is sold for Rs.69, the cost price of the article is

In each of the following questions, a question is followed by information given in three statements. You have to decide the information given in which of the statements
is necessary and sufficient to answer the questions:

A, B, C, D and E are sitting in a circle. Are all of them facing the centre?

I. A is sitting second to the right of D; C is facing the centre and is not an immediate neighbour of D.
II. B, who is sitting between C and D, is second to the right of E, who is not an immediate neighbour of C. B and A are facing each other.
III. D is sitting on the immediate left of B, who is not sitting on the immediate left of A. E is on the immediate right of D.

How many players, on each side, are required for the game of volleyball?

In perfect competition _____.

The demand curve _____.

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

My father generously donated money to the church.

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

A period of time during which a person that might have a disease is kept away from other people so that the disease cannot spread