Average (SSC) (Part-6)

Total Questions: 50

21. In a test, the average score of 50 students is 66. Out of the total students, 40% are girls and the rest are boys. The average score of the boys is 20% less than that of the girls. What is the average score of the girls? [SSC CHSL 24/05/2022 (Afternoon)]

Correct Answer: (c) 75
Solution:

22. In a company there are only two types of employees, workers and officers. 35% of the employees are officers and the average monthly salary of an officer is ₹39,000 more than the combined average monthly salary of an employee. What is the difference between the average monthly salaries of an officer and a worker? [SSC CHSL 25/05/2022 (Afternoon)]

Correct Answer: (d) ₹60,000
Solution:

23. If the average of n quantities is P and the average of m quantities is Q, then the average of (m + n) quantities is: [SSC CHSL 25/05/2022 (Evening)]

Correct Answer: (d)
Solution:

24. The mean of three numbers a/3, b and c is the same as the mean of the numbers b/3​, c/3​ and x. The value of 3x is (where a, b, c are positive numbers): [SSC CHSL 26/05/2022 (Afternoon)]

Correct Answer: (b) a + 2b + 2c
Solution:

25. In a class of 45 students, there are 20 girls who scored an average of 42 marks in a test of 50 marks. If the class average is 36, what are the average marks of the boys ? [SSC CHSL 27/05/2022 (Morning)]

Correct Answer: (d) 31.20
Solution:

26. The first number is one-third of the second number. The second number is 1.5 times of the third number. The third number is three times the fourth number. If the average of the four numbers is 10, find the largest of the number. [SSC CHSL 27/05/2022 (Evening)]

Correct Answer: (b) 18
Solution:

27. A family consists of two grandparents, two parents and four grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 9 years. What is the average age of the family? [SSC CHSL 30/05/2022 (Morning)]

Correct Answer: (b) 30
Solution:

28. The average of the natural numbers divisible by 5 from the integers −10 to 35 [SSC CHSL 30/05/2022 (Afternoon)]

Correct Answer: (d) 20
Solution:

29. In a company, there are only two types of employees: workers and officers. The average monthly salary of an officer is ₹78,000 more than the combined average monthly salary of an employee, while the combined average monthly salary of an employee is ₹42,000 more than the average monthly salary of a worker. What percentage of all the employees are officers? [SSC CHSL 30/05/2022 (Evening)]

Correct Answer: (b) 35%
Solution:

30. The average weight of a family of 4 members is 45 kg. The grandfather and the grandmother come to visit the family. Now the average weight of the 6 members of the family is 48 kg. Find the average weight of the grandparents. [SSC CHSL 31/05/2022 (Afternoon)]

Correct Answer: (d) 54
Solution: