Major Competitive Exams
Download Q&AQ. In a circular loop of radius R carrying a current I, what is the magnetic field at the center of the loop?
Q. In a circular path of radius r around a long straight wire carrying current I, what is the line integral of the magnetic field?
Q. In a circular seating arrangement, if A is facing B and C is to the left of A, who is to the right of B?
Q. In a circular seating arrangement, if M is sitting next to N and O is sitting opposite M, who is sitting next to O?
Q. In a circular seating arrangement, if M is to the left of N and O is to the right of M, who is sitting directly opposite N?
Q. In a circular seating arrangement, if X is to the left of Y and Z is to the right of Y, who is sitting directly opposite to X?
Q. In a circular table arrangement, if P is sitting directly opposite Q and R is sitting to the right of P, who is sitting to the left of Q?
Q. In a circular table arrangement, if X is sitting next to Y and Z is sitting opposite X, who is sitting next to Z?
Q. In a circular table, if there are 8 people and A is sitting opposite to B, who is sitting next to A?
Q. In a class of 30 students, 18 are boys and 12 are girls. If a student is selected at random, what is the probability that the student is a girl?
Q. In a class of 30 students, 18 are boys and 12 are girls. If a student is selected at random, what is the probability that the student is a girl given that the student is not a boy?
Q. In a class of 30 students, 18 are boys and 12 are girls. What is the probability of randomly selecting a girl?
Q. In a class of 30 students, 18 are boys. What is the probability of randomly selecting a girl?
Q. In a class of 30 students, 18 are girls. If a student is selected at random, what is the probability that the student is a girl?
Q. In a class of 30 students, 18 are girls. What is the probability of randomly selecting a boy? (2021)
Q. In a class of 30 students, 18 are girls. What percentage of the class are boys? (2023)
Q. In a class of 30 students, 18 students study Mathematics, 15 study Science, and 10 study both subjects. How many students study only Mathematics?
Q. In a class of 30 students, the average score in Mathematics is 75. If the average score of the boys is 80 and that of the girls is 70, how many boys are there in the class? (2023)
Q. In a class of 30 students, the marks obtained are as follows: 45, 50, 50, 55, 60, 60, 60, 70, 75. What is the mode of the marks? (2019)
Q. In a class of 30 students, the marks obtained are as follows: 45, 50, 55, 60, 65, 70, 75, 80, 85, 90. What is the median?
Q. In a class of 30 students, the marks obtained are as follows: 45, 50, 55, 60, 65. What is the median?
Q. In a class of 30 students, the probability of a student being selected for a project is 0.4. What is the expected number of students selected?
Q. In a class of 40 students, 25 are girls and 15 are boys. If a student is selected at random, what is the probability that the student is a boy given that the student is not a girl?
Q. In a class of 40 students, 25 are girls. What is the probability of selecting a boy?
Q. In a class of 40 students, 25 are taking Mathematics, 15 are taking Physics, and 10 are taking both. What is the probability that a student is taking Physics given that they are taking Mathematics?
Q. In a class of 40 students, 25 study Mathematics, 20 study Science, and 10 study both subjects. How many students study only Mathematics?
Q. In a class of 40 students, the average score in Mathematics is 75. If 10 new students join with an average score of 85, what will be the new average?
Q. In a class of 5 students, their scores are 10, 20, 30, 40, and 50. What is the median score?
Q. In a class of 5 students, their scores are 12, 15, 18, 20, and 25. What is the median score?
Q. In a class of 5 students, their scores are 12, 15, 20, 25, and 28. What is the median score?
