# IB Security 2019

Instructions

For the following questions answer them individually

Question 11

Length of a minute hand of a clock is 14 cms. Area swept by the minute hand in 5 minutes is:

Question 12

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:

Question 13

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.

Question 14

Which of the following cannot be the probability of an event?

Question 15

Mean of a grouped data calculated using direct mean method, assumed mean method or step deviation mean method:

Question 16

Which of the following is a Prime Number?

Question 17

If polynomial P(x) = $$x^3 - 3x^2 + 5x - 3$$ is divided by polynomial G(x) = $$x^2 - 2$$, the quotient and remainder are:

Question 18

If in triangle ABC, if side AB $$= 6\sqrt{3}$$, AC $$= 12$$ and BC $$= 6$$, then angle B equals:

Question 19

What are the coordinates of the point which divides the line joining (-1, 7) and (4, -3) in the ratio 2 : 3?

Question 20

Volume of a cone with radius r and height h is:

OR