31. Probability
sampling implies:
(A) Stratified Random Sampling (B)
Systematic Random Sampling
(C) Simple Random Sampling (D)
All of the above
Answer: D
32. Insert the
missing number:
36/62, 39/63, 43/61, 48/64, ?
(A) 51/65 (B) 56/60
(C) 54/60 (D) 33/60
Answer: C
33. At what time
between 3 and 4 O’clock will the hands of a watch point in opposite directions?
(A) 40 minutes past three (B)
45 minutes past three
(C) 50 minutes past three (D) 55
minutes past three
Answer: C
34. Mary has three
children. What is the probability that none of the three children is a boy?
(A) 1/2 (B) 1/3
(C) 3/4 (D) 1/8
Answer: D
Explanation:
If none of the children are boys, this means that each child must be a
girl.
The probability of this happening is ½ x ½ x ½.
The answer is 1/8.
35. If the radius
of a circle is increased by 50 per cent. Its area is increased by:
(A) 125 per cent (B) 100
per cent
(C) 75 per cent (D) 50
per cent
Answer: A
36. CD ROM stands
for:
(A) Computer Disk Read Only Memory
(B) Compact Disk Read Over Memory
(C) Compact Disk Read Only Memory
(D) Computer Disk Read Over Memory
Answer: C
37. The ‘brain’ of
a computer which keeps peripherals under its control is called:
(A) Common Power Unit (B) Common
Processing Unit
(C) Central Power Unit (D)
Central Processing Unit
Answer: D
38. Data can be
saved on backing storage medium known as:
(A) Compact Disk Recordable (B)
Computer Disk Rewritable
(C) Compact Disk Rewritable (D)
Computer Data Rewritable
Answer: C
39. RAM means:
(A) Random Access Memory (B)
Rigid Access Memory
(C) Rapid Access Memory (D)
Revolving Access Memory
Answer: A
40. www represents:
(A) who what and where (B) weird
wide web
(C) word wide web (D)
world wide web
Answer: D
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