P is the set of factors of 5, Q is the set of factors of 25 and R is the set of factors of 125. Which of the following is false?
(A) `P subset Q` (B) `Q subset R` (C) `R subset P` (D) `P subset R`

A is the set of prime number less than 10, B is the set of odd numbers less than 10 and C is the set of even numbers of less than 10. Which of the following statements are true? (i) A subset B (ii) B subset A (iii) A subset C (iv) C subset A (v) B subset C (vi) phi subset A

If R is the set of real numbers and Q is the set of rational numbers, then what is R – Q ?

The negation of p to (q ^^ r) is

Write down all the subsets of the following sets {a,b}

Let A = (p, q, r) which of the following is an equvilance relation on A?

Sum P + Q + R is :

The relation 'is subset of' on the power set P(A) of a set A is :

The contrapositive of the statement p to ( ~q to ~r) is

Calculate the amount of work done in taking the gas from the state (i) P to Q (ii) Q to R (iii) R to P (iv) the entire cycle,