Total Questions:25 Total Time: 45 Min
Remaining:
Question:A basket contains 7 red balls and 8 blue balls If 3 balls are picked at random, what is the probability all are red ?
\(\frac{3}{8}\)
\(\frac{1}{5}\)
\(\frac{3}{7}\)
\(\frac{1}{{13}}\)
None of these
Question:What is the probability of getting a sum nine from two throws of a dice ?
1/6
1/8
1/9
1/12
Question:Two dice are thrown simultaneously. What is the probability of getting two munbers whose product is even ?
1/2
3/4
3/8
5/16
Question:A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:
1/22
3/22
2/91
2/77
Question:A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. what is the probability that none of the ball drawn is blue ?
10/21
11/21
2/7
5/7
Question:A can hit a target 4 times in 5 shots, B hits 3 times in four shots, and C hits thrice in 3 shots, they fire together. Find the probability that at least two shots hit the target -
13/30
5/6
11/40
Question:In a class of 25 students with Roll No. 1 to 25, a student is picked up at random to answer a question. Find the probability that the roll number of the selected student is either multiple of 5 or 7 -
6/25
4/25
8/25
7/25
Question:If there are 12 persons in a party, and each one of them shakes hand with each other, How many hand shakes happened in the party ?
77
66
44
55
Question:There are 100 students in a college class of which 36 are boys studying statistics and 13 girls not studying statistics. If there are 55 girls in all, the probability that a boy picked up at random is not studying statistics, is -
3/5
2/5
1/5
Question:A committee consists of 9 experts taken from three institutions A, B and C, of which 2 are from A, 3 from B and four from C. If three experts resign , then the probability that they belong to different institution is -
1/729
1/24
1/21
Question:An article manufactured by a company consist of two parts X and Y. In the process of manufacture of part X, 9 out of 104 parts may be defective. Similarly, 5 out of 100 are likely to be defective in the manufacture of Y parts. The probability that the assembled product will be defective, is-
253/416
361/416
322/416
Question:Out of 13 applicants for a job, there are 5 women and 8 men. It is desired to select two persons for the job. The probability that atleast one of the selected persons will be a woman is-
25/39
14/39
5/13
10/13
Question:A bag has 10 mangoes out of which 4 are rotten. Two mangoes are taken out together. If one of them is found to be good, the probability that other is also good is -
1/3
8/15
5/18
2/3
Question:Four boys and three girls stand in queue for an interview. The probability that they will stand in alternate position is-
1/34
1/35
1/17
1/68
Question:A and B play a game where each is asked to select a number from 1 to 25. If the two numbers match, both of them win a prize. The probability that they will not win a prize in a single trial is -
1/25
24/25
2/25
Question:The probability that a contractor will get a plumbing contract is 2/3 and the probability that he will not get the electric contract is 5/9. If the probability of getting atleast one contract is 4/5, what is the probability that he get both ?
31/45
8/45
14/45
Question:A chartered Accountant applies for a job in two firms X and Y. The ability of his being selected in the firm X is 0.7, and being rejected at Y is 0.5 and the probability of atleast one of his applications being rejected is 0.6. what is the probability that he will be selected in one of the two firms ?
0.8
0.2
0.4
0.7
Question:An ordinary cube has four blank faces, one face marked 2 and another marked 3 then the probability of obtaining 12 in five throws is -
5/1944
5/1296
5/2592
Question:A fair win is tossed a fixed number of times. If the probability of getting 4 heads equals the probability of getting 7 heads, then the probability of getting 2 heads is -
1/2024
55/2048
3/4096
Question:Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
9/20
Question:A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
Question:In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
7/19
8/21
9/21
Question:What is the probability of getting a sum 9 from two throws of a dice?