1) If p and q are odd numbers, then which of these is even? a) pq b) p-q c) p+q d) pq-2 e) pq-3 f) pq-7 2) What is the symbol of natural numbers? a) N b) R c) A d) S e) W f) B 3) Every integer is a rational number a) True b) False 4) How are rational numbers denoted? a) N b) W c) Q d) I e) R f) M 5) Every integer is a whole number a) True b) False 6) Which of the following is the rationalising factor of √5 a) 5 b) 15 c) 12 d) 7 e) 2 f) 4 7) 1.27 bar can be represented in the p/q form by: a) 126/99 b) 127/99 c) 14/11 d) 124/90 8) What is √2 equal to a) 14.15 b) 1.441 c) 1.414 9) Is √225 irrational or rational a) Rational b) Irrational

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