Average (SSC) (Part-3)

Total Questions: 50

1. A group of 30 students appeared in a test. The average score of 12 students is 62, and that of the rest is 62. What is the average score of the group? [SSC CGL 11/09/2024 (1st Shift)]

Correct Answer: (a) 62
Solution:

2. Find the average of the prime numbers lying between 50 and 76. [SSC CGL 11/09/2024 (2nd Shift)]

Correct Answer: (d) 64
Solution:

3. A class of 30 students appeared in a test. The average score of 12 students is 62, and that of the rest is 74. What is the average score of the class? [SSC CGL 11/09/2024 (3rd Shift)]

Correct Answer: (b) 69.2
Solution:

4. The average of 12 numbers is 48. The average of the first 5 numbers is 45 and the average of next 4 numbers is 52. If the 10ᵗʰ number is 10 less than the 11ᵗʰ number and is 5 more than the 12ᵗʰ number, then the average of the 11ᵗʰ and 12ᵗʰ numbers is: [SSC CGL 12/09/2024 (1st Shift)]

Correct Answer: (d) 48.5
Solution:

5. The average of the squares of the first 47 natural numbers is [SSC CGL 17/09/2024 (1st Shift)]

Correct Answer: (a) 760
Solution:

6. The average weight of 10 students is increased by half a kg when one of the students weighing 51 kg is replaced by a new student. Find the weight of the new student. [SSC CGL 18/09/2024 (2nd Shift)]

Correct Answer: (a) 56 kg
Solution:

7. The average score of a batsman in twenty matches is 15 and in twenty-five other matches is 24. Find the average score in all the forty-five matches. [SSC CGL 19/09/2024 (2nd Shift)]

Correct Answer: (b) 20
Solution:

8. In a team of seven members, the average age of six of the members is 42 years while the age of the seventh member of the team is 36 years more than the average age of all the seven members taken together. Find the age (in years) of the seventh member of the team. [SSC CGL 23/09/2024 (3rd Shift)]

Correct Answer: (b) 84
Solution:

9. A class of 30 students appeared in a test. The average score of 12 students is 62, and that of the rest is 60. What is the average score of the class? [SSC CGL 23/09/2024 (3rd Shift)]

Correct Answer: (c) 60.8
Solution:

10. In the 8ᵗʰ class, consisting of 30 students, a Mathematics test was taken. 10 students had an average score of 90. The other students had an average score of 75. What is the average score of the whole class? [SSC CGL 25/09/2024 (2nd Shift)]

Correct Answer: (b) 80
Solution: