CBSE CLASS 10 MATHS PROBABILITY IMPORTANT QUESTIONS WITH ANSWERS

PROBABILITY EXTRA QUESTIONS FOR CLASS 10 MATHS

Probability Class 10 Important Questions 

1. A jar contains 24 Marbles some  green and other are blue, if a marble is drawn random from those are the probability that it is green is 2 / 3 find the number of blue marbles in the jar.                                                                                                                       

2. A card is drawn at random from a well shuffled pack of 52 playing cards. find the probability of getting neither a red card nor a queen. ( 2016)

3. Two dice are thrown at the same time and the product of numbers appearing on them is noted find the probability that the product is a prime number.             

4. Rahim tosses two different coins simultaneously find the probability of getting at least one tail. (2014)

5. In a single throw of a pair of different dice what is the probability of getting

i) a prime number on each die ii) a total of 9 or 11   (2016)                 

6.The king queen and check of clubs are removed from a pack of 52 playing cards the remaining cards are then will shuffled and then one card is selected at random find the probability of getting

i)  a heart

ii) a king

iii) a club

iv) the 10 of hearts                                                                                      

7. What is the probability of getting 53 Tuesday in

i) non leap year

ii) leap year                                                               ( VImp)

8. A die is thrown once what is the probability of getting a number greater than 4.   (2010)

9. A card is drawn at random from a well shuffled pack of 52 playing cards.Find the probability of getting a red face card .   ( 2010)

10. A letter of English alphabet is selected at random determine the probability that the selected letter is a consonant.    (2015)

11. Game of chance consists of spinning and arrow with comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 and these are equally likely outcomes find the probability that the arrow will point at any factor of 8.                 (2015)

12. A ticket is drawn at random from a bag containing tickets numbered from 1 to 40 find the probability that the selected tickets has a number which is a multiple of 5.    (2011)

13. 3 cards of spades are lost from a pack of 52 playing cards and the remaining cards are shuffled and then 1 card was drawn at random from them find the probability that the drawn card is of black colour.              ( 2013)

14. The probability of guessing the correct answer to a certain test is 1/2 if the probability of not guessing the correct answer to the question is 1 / 3 then find the value of p.   (Hot)

15. From a group of 3 boys and 2 girls with selected to children what is the set representing the event

i) 1 girl is selected

ii) at least one girl is selected                      (Hot)

16.1000 tickets of a lottery was saled and there are 5 prices on these tickets if Ram has purchased one lottery ticket what is the probability of winning a prize.    (Imp)

17. A group consists of 12 persons of which 3 are extremely patient other 6 are extremely honest and the rest are extremely kind a person from the group is selected at random assuming that each person is equally likely to be selected find the probability of selecting a person who is

i) extremely patient

ii) extremely kind of honest

iii) which of the above values are you prefer

18. The probability of selecting a red ball at random from a jar that contains only red, blue and orange balls is 1/ 4 . the probability of selecting a blue ball at random fromthe same jar is 1/ 3 . if there are 10 Orange balls, find the total number of balls in the jar.

19. A lot consists of 144 ball pens, of which 20 are defective and the others are good as told by the shopkeepers. Noori will buy a pen if it is good, will be not by if it is defective. the shopkeepers draws one pan at random and give it to her. what is the probability that

i) she will buy it

ii) she will not buy it

20. Two dice are thrown simultaneously. find the probability that

i) 5 will not come up on either of them

ii) 5 will come up on at least one

iii) 5 will come up at both dice.                              ( 2009)


Read more : Class X Electricity Practice Questions

Answers Of Probability Important Questions

1. 8
2. 6/13
3. 1/6
4. 3/4
5. i)  1/4 ii) 1/6
6. i) 13/49 ii) 3/49 iii) 10/49 iv) 1/49   
7. i) 1/7 ii) 2/7     
8. 1/3
9. 3/26
10. 21/26
11. 3/8
12. 1/5  
13. 23/52  
14. 8  
15. i)  3/5      ii) 7/10
16. 1/200

20. i) 11/36 ii) 1/6 iii)1/36

Read More : CBSE Class 10 Sample Papers with Solutions

 
All the best for your Board Exams!
 

“SHARING IS CARING” So,Please take a moment to share these Important Questions with your friends. After all, Knowledge is the only thing that grows when shared!