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Browse complete papersLength of a minute hand of a clock is 14 cms. Area swept by the minute hand in 5 minutes is:
154 sq cms
154/3 sq cms
210 sq cms
154/√3 sq cms
Correct answer
154 sq cms
A metallic sphere of radius 4.2 cms. is melted and recast into the shape of a cylinder of radius 6 cms. Height of the resultant cylinder would be:
110 cms
3.84 cms
30 cms
2.74 cms
Correct answer
110 cms
A box contains 3 blue, 2 white and 4 red marbles. If a marble is drawn at random from the box, what is the probability that it would be white.
Cannot be determined
1
7/9
2/9
Correct answer
Cannot be determined
Which of the following cannot be the probability of an event?
2/3
-1.5
15%
0.7
Correct answer
2/3
Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
Is the same
Varies slightly
Has huge variation
None of these
Correct answer
Is the same
Which of the following is a Prime Number?
12
7
9
4
Correct answer
12
If polynomial P(x) = x3 – 3x2 + 5x – 3 is divided by polynomial G(x) = x2 – 2, the quotient and remainder are:
x - 3, 7x - 9
x, 7x
x - 3, 7x
x, 7x - 9
Correct answer
x - 3, 7x - 9
If in triangle ABC, if side AB = 6√3, AC = 12 and BC = 6, then angle B equals:
120°
60°
90°
45°
Correct answer
120°
What are the coordinates of the point which divides the line joining (- 1, 7) and (4, - 3) in the ratio 2 : 3?
(7, 4)
(9, 9)
(1, 3)
(4, 7)
Correct answer
(7, 4)
Volume of a cone with radius r and height h is:
πrh2
πr2h/2
πrh/3
πr2h/3
Correct answer
πrh2