Class 10th Maths Probability (2)

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1. Two dice are thrown together. Find the probability that the product of the numbers on the top of the dice is

a) 6 b) 12 c) 7 (1/9, 1/9, 0)

2. Two different dice are thrown at the same time. Find the probability that the sum of the two numbers appearing

On the top of the dice is 7 (1/6)

3. A pair of dice is tossed once, find the probability of getting

a) a total of 2 (1/36)

b) a total of 5 (1/9)

c) an even number as the sum (1/2)

d) same number on each dice (1/6)

4. A die is thrown once. Find the probability of getting the following:

a) a prime number (1/2)

b) a number lying between 2 and 5 (1/3)

5. A card is drawn at random from a well shuffled pack of playing cards. Find the probability of getting a red face

card (3/26)

6. One card is drwn from a well shuffled deck of 52 playing cards. Find the number of probability of getting

a) A face card (3/13)

b) A black queen or a red king (1/13)

c) a king of red colour (1/26)

d) the jack of hearts (1/52)

e) a spade. (1/4)

f) either a king or a queen (2/13)

g) neither a king nor a queen (11/13)

7. From a pack of 52 playing cards, Jacks, Queens, Kings and Aces of red colour are removed. From the remaining,

A card is drawn at random. Find the probability that the card drawn is

a) A black queen (1/21)

b) A non – face card (10/13)

c) A black jack (1/22)

d) a Black King or a Red Queen (1/13)

8. A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is thrice

that of red ball, find the number of blue balls in the bag (15)

9. A bag contains 6 red, 3 black and 6white balls. A ball is selected at random from the bag. Find the probability

that the selected ball is

a)Red or black b) not black (3/5, 4/5)

10. Cards marked with numbers 5,6,7,………………………..74 are placed in a bag and mixed thoroughly. One card is

Drawn at random from the bag. Find the probability that the number on the card is a perfect square (3/35)

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