मराठी

A Die is Tossed Once. Find the Probability of Getting an Even Number Or a Multiple of 3 ? - Mathematics

Advertisements
Advertisements

प्रश्न

A die is tossed once. Find the probability of getting an even number or a multiple of 3 ?

उत्तर

The number of possible outcomes is six: 1, 2, 3, 4, 5 and 6.

Among these numbers; 2, 4, 6 are the even numbers and 3, 6 are the multiples of 3.

Favourable outcomes are {2, 3, 4, 6}.

So, P (getting an even number or a multiple of 3) `=\text{Number of favouravle outcomes}/\text{Total number of all possible outcomes}=4/6=2/3`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2012-2013 (March) Delhi set 2

संबंधित प्रश्‍न

There are three boys and two girls. A committee of two is to be formed. Find the probability of the following events:
Event A: The committee contains at least one girl
Event B: The committee contains one boy and one girl


If two different dice are rolled together, the probability of getting an even number on both dice, is:

(A) 1/36
(B) 1/2
(C) 1/6
(D) 1/4


Two coins are tossed simultaneously. Write the sample space (S), n(S), the following event A
using set notation and n(A), where ‘A is the event of getting at least one head.’


In the accompanying diagram a fair spinner is placed at the center O of the circle.
Diameter AOB and radius OC divide the circle into three regions labelled X, Y and Z. If
∠BOC = 45°. What is the probability that the spinner will land in the region X?(See fig) 


Cards numbered 1 to 30 are put in a bag. A card is drawn at random from this bag. Find the probability that the number on the drawn card is a prime number greater than 7


Cards each marked with one of the numbers 4, 5, 6, ..., 20 are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting an even number?


A number is chosen at random from the number –3, –2, –1, 0, 1, 2, 3. What will be the probability that square of this number is less then or equal to 1?


In a single throw of a pair of dice, the probability of getting the sum a perfect square is


A coin is tossed once. What is the probability of getting a tail?


It is known that a box of 200 electric bulbs contains 16 defective bulbs. One bulb is taken out at random from the box. What is the probability that the bulb drawn is defective.


17 cards numbered 1, 2, 3, 4, .... ,17 are put in a box and mixed thoroughly. A card is drawn at random from the box. Find the probability that the card drawn bears a number divisible by 5.


A bag contains 4 white balls, 5 red balls, 2 black balls and 4 green balls. A ball is drawn at random from the bag. Find the probability that it is black.


A box contains 25 cards numbered from 1 to 25. A card is drawn at random from the bag. Find the probability that the number on the drawn card is divisible by 2 or 3.


Cards numbered 1 to 30 are put in a bag. A card is drawn at random from the bag. Find the probability that the number on the drawn card is not divisible by 3,


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


A die is thrown once. Find the probability of getting a composite number


A coin is tossed twice. Find the probability of getting: two heads


You are walking along a street. If you just choose a stranger crossing you, what is the probability that his next birthday will fall on a Sunday?


A man is known to speak the truth 3 out of 4 times. He throws a die and a number other than six comes up. Find the probability that he reports it is a six.


Which of the following is not a random experiment?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×