Average (SSC) (Part-2)

Total Questions: 50

21. The average monthly income of A and B is ₹3,590. The average monthly income of B and C is ₹4,250. The average monthly income of A and C is ₹6,500. What is the monthly income of C? [SSC MTS 30/09/2024 (Morning)]

Correct Answer: (d) ₹7,160
Solution:

22. The average of the sales of an electronics shop in the years 1991, 1992, 1993 and 1994 is 2000, and that for the years 1992, 1993, 1994 and 1995 is 2200. If the sales in 1995 are 1800, find the sales in 1991. [SSC MTS 30/09/2024 (Afternoon)]

Correct Answer: (c) 1000
Solution:

23. The average of the numbers 253, 245, 325, 120 and 115+2K is 212. Find the average of the numbers 353, 354, 225, 220 and 110+3K. [SSC MTS 30/09/2024 (Evening)]

Correct Answer: (c) 253
Solution:

24. The average score obtained by 64 boys and a certain number of girls in a test is 59.15, while the average score obtained by the boys is 55.25. If the average score of the girls is 68.75, then how many girls appeared for the test ? [SSC MTS 30/09/2024 (Evening)]

Correct Answer: (d) 26
Solution:

25. The average weight of a certain number of students in a group was 72 kg. If 11 students, with an average weight of 76 kg each, leave the group, and 5 students, each with an average weight of 79 kg, join the group, the average weight of the students in the group decreases by 0.6 kg. The number of students initially in the group was: [SSC MTS 01/10/2024 (Morning)]

Correct Answer: (a) 21
Solution:

26. The average weight of a group of 20 women was calculated as 58.5 kg and it was later discovered that the weight of one of the women was read as 35 kg, whereas her actual weight was 65 kg. What is the actual average weight of the group of 20 women? [SSC MTS 01/10/2024 (Afternoon)]

Correct Answer: (c) 60 kg
Solution:

27. The average of seven consecutive numbers is 95. Find the middle number in the series of seven consecutive numbers. [SSC MTS 07/10/2024 (Afternoon)]

Correct Answer: (d) 95
Solution:

28. The average age of 11 players of a cricket team is increased by 2 months, when two of them aged 20 years and 21 years, respectively, are replaced by two new players. Find the average age of the two new players (in years). [SSC MTS 08/10/2024 (Morning)]

Correct Answer: (b) 21⁵⁄₁₂
Solution:

29. A tunnel elevator can carry a maximum of 15 passengers with an average weight of 81 kg. However, four persons beyond the maximum capacity entered the elevator, resulting in an average weight of 82 kg and causing it to be overloaded. Find the average weight (in kg) of the additional four persons. [SSC MTS 08/10/2024 (Afternoon)]

Correct Answer: (d) 85.75
Solution:

30. The mean of marks secured by 3 students in grade A of class XI is 83, that of 4 students of grade B is 76 and that of 5 students of grade C is 85. What will be the mean of marks of the students of three grades of Class XI ? [SSC MTS 08/10/2024 (Evening)]

Correct Answer: (d) 81.5
Solution: