Q. No. 1: Encircle the correct option: /48
1) For any set A, AՈФ = _.
a. Ф b. A c. U d. None
2) The set N of natural numbers and z of integers are _ sets.
a. Disjoint
b. Overlapping
c. Subset
d. None
3) If A={-1, 0, 1, 2, 3} and B={-1, 0, 1}, then B/A = .
a. B b. A c. AB d. Ф
4) The denominator of a rational number cannot be _.
a. 1 b. 2 c. 0 d. Integer
5) 2/3 = _.
a. 0. b. 0. c. 0. d. 0.
6) The sum of two rational numbers is a _ number.
a. Rational b. Irrational c. Even d. None
7) (37)º = _
a. 1 b. 0 c. 37 d. 370
8) 2
3
=
a. 2 b. 3 c. 8 d. 6
9) a
8
x a5
= _
a. a
-13 b. a
-3
c. a
3
d. a
-40
10) if x:y=2:1 and y:z=2:1, then x:y:z =
a. 2:1:2 b. 4:2:1 c. 2:2:1 d. 1:1:2
11) A speed of 72 kmh-1
= ____ ms-1
a. 2 b. 20 c. 200 d. 2000
12) If we divide the number 280 in ratio 2:3:5, the greatest number will be . a. 140 b. 160 c. 170 d. 56 13) Square root of 1225 is ______.
a. 64 b. 35 c. 72 d. 74
14) A perfect square has _.
a. Single factor
b. Cube of each factor
c. Pair of factors
d. None
15) Square of 1 is __.
a. 2 b. 0 c. 1 d. None
16) Zakat is due to at __ gm of gold.
a. 78.28
b. 80.28
c. 87.48
d. 48.87
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