probability questions Practice Question and Answer
8 Q: Five dice are tossed together. What is the probability of getting different faces in all of the dice?
253 064f56be94687b15f94b44b4b
64f56be94687b15f94b44b4b- 1false
6!/66
- 2true
6!/65
- 3false
5!/65
- 4false
5!/66
- 5false
6!/55
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. " 6!/65
"
Q: A glass jar contains 6 white, 8 black, 4 red and 3 blue marbles. If a single marble is chosen at random from the jar, what is the probability that it is black or blue?
522 06492d7aa14cf8fe013dc1538
6492d7aa14cf8fe013dc1538- 1$${8\over 21}$$false
- 2$${11\over 21}$$true
- 3$${5\over 21}$$false
- 4$${1\over 7}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "$${11\over 21}$$"
Q: In a lottery, there are 7 prizes and 21 blanks. If a lottery is drawn at random, then what is the probability of getting a prize?
413 0631f3174671e1904db721676
631f3174671e1904db721676- 1$${2\over5}$$false
- 2$${3\over5}$$false
- 3$${1\over4}$$true
- 4$${1\over10}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "$${1\over4}$$"
Q: A bag contains 30 balls, numbered 1 to 30. Two balls are drawn at random. What is the probability that the balls drawn contain a number which is multiple of 4 or 6 but not a multiple of both?
876 062c3f815a00ee61c312c23ee
62c3f815a00ee61c312c23ee- 1$$ {1\over6}$$false
- 2$$ {1\over5}$$false
- 3$$ {1\over4}$$false
- 4$$ {1\over3}$$false
- 5None of thesetrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 5. "None of these"
Q: 9 persons are seated around a round table. What is the probability that two particular persons sit together?
655 0620112d5fd5f0218b81d0413
620112d5fd5f0218b81d0413- 1$$ {1\over 4}$$true
- 2$$ {2\over 5}$$false
- 3$$ {1\over 3}$$false
- 4$$ {3\over 4}$$false
- 5$$ {2\over 3}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "$$ {1\over 4}$$"
Q: There are 3 green, 4 orange and 5 white color bulbs in a bag. If a bulb is picked at random, what is the probability of having either a green or a white bulb?
2810 061b1ed5a8b0b930f53fe4d0b
61b1ed5a8b0b930f53fe4d0b- 13/4false
- 22/3true
- 34/3false
- 42/5false
- 5None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "2/3"
Q: What is the probability of forming word from the letters of word “IMPEACH” such that all vowels come together?
753 0619f5a2bc1c85f0fbf503a19
619f5a2bc1c85f0fbf503a19- 1$$ {8\over 35}$$false
- 2$$ {1\over 7}$$true
- 3$$ {3\over 35}$$false
- 4$$ {17\over 35}$$false
- 5$$ {2\over 7}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "$$ {1\over 7}$$"
Q: Ten different letters of alphabet are given, words with 5 letters are formed from these given letters. Then, how many such words can be formed which have at least one letter repeated ?
775 0608be07b5c992217d582290e
608be07b5c992217d582290e- 169760true
- 269970false
- 367960false
- 465760false
- 569790false
- Show AnswerHide Answer
- Workspace
- SingleChoice