Q11 of 39 Page 1

A die is thrown once. Find the probability of getting a number which (i) is a prime number (ii) lies between 2 and 6.

If a die is thrown once there are following outcomes.

1, 2, 3, 4, 5, 6

We know,


(i) getting a prime number

As prime numbers are 1,3,5.

Probability of getting a prime number is:



(ii) Number lies between 2 and 6

Numbers between 2 and 6 are 3,4,5.


Probability of getting a number between 2 and 6 is:



More from this chapter

All 39 →
9

Find the ratio in which the segment joining the points (1, -3) and (4, 5) is divided by x-axis? Also find the coordinates of this point on x-axis.

 10

A game consists of tossing a coin 3 times and noting the outcome each time. If getting the same result in all three tosses is a success, find the probability of losing the game.

 12

Find c if the system of equations cx + 3y + (3 – c) = 0 has 12x + cy – c = 0 has infinitely many solutions?

 13

Prove that √2 is an irrational number.