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Recent questions tagged probability

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1
A bag contains $12$ balls of the two different colours out of which $x$ are white. One ball is drawn at random. If $6$ more white balls are put in a bag, the probability of drawing a white ball now will be doubled to that of previous probability of drawing a white ball. The value of $x$ is : $4$ $5$ $6$ $3$
asked Apr 3 in Quantitative Aptitude Lakshman Patel RJIT 8.8k points 17 255 656 40 views
1 vote
1 answer
2
A college cricket team with $11$ players consists of $4$ batsman, $3$ all-rounders, $3$ bowlers and $1$ wicket keeper. $3$ players are selected randomly. Find the probability that the selection contains a batsman, a bowler and an all-rounder. $\dfrac{12}{60} \\$ $\dfrac{13}{25} \\$ $\dfrac{12}{55} \\$ $\dfrac{104}{165}$
asked Mar 31 in Quantitative Aptitude Lakshman Patel RJIT 8.8k points 17 255 656 481 views
0 votes
1 answer
3
If a fair coin is tossed $5$ times and comes up heads four times out of five. Then if the coin is tossed a sixth time under the same conditions, the probability of it turning up heads is: $80\%$ $125\%$ $50\%$ $20\%$
asked Mar 31 in Quantitative Aptitude Lakshman Patel RJIT 8.8k points 17 255 656 208 views
1 vote
1 answer
4
Two dice are thrown simultaneously. The probability of obtaining a total score of $5$ is $1/18$ $1/12$ $1/9$ None of these
asked Mar 31 in Quantitative Aptitude Lakshman Patel RJIT 8.8k points 17 255 656 98 views
1 vote
2 answers
5
You have to play three games with opponents A and B in a specified sequence. You win the series if you win two consecutive games. A is a stronger player than B. Which sequence maximizes your chance of winning the series? AAB ABA BAB BAA All are the same.
asked Aug 1, 2018 in Quantitative Aptitude Rishav Kumar Singh 560 points 3 9 387 views
4 votes
3 answers
6
A coin is tossed 10 times Find the probablity of obtaining head at least once
asked Dec 24, 2017 in Quantitative Aptitude Uma Maheswari 286 points 5 11 26 327 views
2 votes
0 answers
7
IA^B refers to A raised to the power B.Ten tickets numbered 1, 2, 3, ..., 10. Six tickets are selected at random one at a time with replacement. The probability of the largest number appearing on the selected ticket is 7 is -> a. (7^6 +1)/10^6 b. (7^6 - 6^6)/10^6 c. (7^6+6^6)/10^6 d. 6^6/10^6
asked Oct 2, 2017 in Quantitative Aptitude flash 26 points 1 2 4 1.4k views
1 vote
1 answer
8
There are two bags. One bag contains 4 white and 2 black balls. Second bad contains 5 white and 4 black balls. 2 balls are transferred from first bag to second bag. Then one ball is taken from the second bag. The probability that the ball is white is ? 42/33 5/16 48/13 19/33
asked Sep 15, 2016 in Quantitative Aptitude __ 498 points 12 19 26 753 views
1 vote
2 answers
9
When 4 dice are thrown, what is the probability that the same number appears on each of them? a. 1/36 b. 1/18 c. 1/216 d. 1/5
asked Sep 7, 2016 in Quantitative Aptitude __ 498 points 12 19 26 295 views
4 votes
1 answer
10
It is known that a bus will arrive at random at a certain location sometime between 3:00 P.M. and 3:30 P.M. A man decides that he will go at random to this location between these two times and will wait at most 5 minutes for the bus. If he misses it, he will take the subway. What is the probability that he will take the subway?
asked Jul 14, 2015 in Quantitative Aptitude Arjun 8k points 52 71 150 1.4k views
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