Defence Exams
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Q. In a double displacement reaction, which of the following pairs will react? (2021)
Q. In a family with 3 children, what is the probability that at least one of them is a girl?
Q. In a football match, a player scored 3 goals in the first half and 2 goals in the second half. What is the ratio of goals scored in the first half to the total goals scored? (2020)
Q. In a football match, a player scores 3 goals in the first half and 2 goals in the second half. What is the ratio of goals scored in the first half to the total goals scored? (2020)
Q. In a football match, a player scores 5 goals in 3 matches. If he continues this rate, how many goals will he score in 12 matches? (2020)
Q. In a frequency distribution, the following data is given: 1 (2 times), 2 (3 times), 3 (3 times), 4 (1 time). What is the mode? (2020)
Q. In a frequency distribution, the following values are recorded: 2, 3, 3, 4, 4, 4, 5, 5. What is the mode?
Q. In a game of badminton, a player wins 75% of the matches played. If he played 40 matches, how many matches did he win? (2021)
Q. In a game of badminton, if a player scores 21 points in a game and the opponent scores 15 points, what is the winning margin? (2022)
Q. In a genetic cross, if the phenotypic ratio of the offspring is 9:3:3:1, what type of cross was performed?
Q. In a genetic cross, if the phenotypic ratio of the offspring is 9:3:3:1, what type of inheritance is being observed?
Q. In a genetic cross, if the ratio of phenotypes in the offspring is 9:3:3:1, what type of cross was performed?
Q. In a genetic experiment, a plant with genotype AaBb is crossed with another plant of genotype Aabb. What is the probability of obtaining an offspring with genotype Aabb?
Q. In a genetic study, if a trait is controlled by a single gene with two alleles, where one allele is completely dominant over the other, what type of inheritance pattern is this?
Q. In a genetic study, if a trait is controlled by a single gene with two alleles, how many different genotypes can be formed from two heterozygous parents?
Q. In a genetic study, if a trait is controlled by a single gene with two alleles, where one allele is completely dominant over the other, what is the expected genotypic ratio in the offspring of a monohybrid cross?
Q. In a group of 15 people, the ages are: 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 25, 26, 27, 28, 29. What is the mode of the ages? (2022)
Q. In a group of 50 people, 30 like tea, 20 like coffee, and 10 like both. What is the probability that a person chosen at random likes either tea or coffee?
Q. In a group of friends, the number of games played is: 3, 3, 4, 4, 4, 5, 6. What is the mode of the games played?
Q. In a group of friends, the number of movies watched in a month are: 3, 3, 4, 4, 4, 5, 6. What is the mode?
Q. In a group of friends, the number of movies watched last month are: 1, 1, 2, 2, 3, 3, 3, 4. What is the mode?
Q. In a group of friends, the number of times they went out last month is: 1, 2, 2, 3, 3, 3, 4. What is the mode?
Q. In a group of students, the number of languages spoken is: 1, 2, 2, 3, 3, 4, 4, 4, 5. What is the mode?
Q. In a hydrogen atom, what is the energy of the electron in the ground state? (Use Rydberg's constant R = 13.6 eV) (2023)
Q. In a legislative assembly of 60 members, if 40% are from the ruling party, how many members are not from the ruling party? (2022)
Q. In a lottery, the probability of winning is 0.2. What is the probability of losing?
Q. In a magnetic field, the direction of the magnetic force on a charged particle is given by which rule?
Q. In a national election, if 65% of the votes are in favor of a candidate and there are 1,000,000 votes cast, how many votes did the candidate receive?
Q. In a national event, 60% of participants are male. If there are 240 participants, how many are female?
Q. In a national event, 60% of the participants are male. If there are 240 participants, how many are female?
