Average (SSC) (Part-4)

Total Questions: 50

11. The average of the first 69 natural numbers is: [SSC MTS 04/09/2023 (1st Shift)]

Correct Answer: (b) 35
Solution:

12. The average age of a family of three members (mother, father and Son) is 44 years. After the son's marriage, the average age of the family becomes 39 What is the age of the years. daughter-in-law? [SSC MTS 05/09/2023 (2nd Shift)]

Correct Answer: (a) 24 years
Solution:

13. A batsman makes 96 runs in the 13ᵗʰ innings and thus his average increases by 3. Find his average after 13 innings. [SSC MTS 06/09/2023 (1st Shift)]

Correct Answer: (d) 60
Solution:

14. The average of four consecutive odd numbers is 58. What is the lowest number? [SSC MTS 06/09/2023 (2nd Shift)]

Correct Answer: (c) 55
Solution:

15. In April, Mr. Khan observed that his balance in his bank account is ₹5,600 for the first 24 days, ₹12,000 for the next two days and ₹37,500 in the last 4 days of the month. What is his daily average balance for April ? [SSC MTS 06/09/2023 (3rd Shift)]

Correct Answer: (a) ₹10,280
Solution:

16. The speed of a bus from station A to B is 55 km/h, and while coming back from station B to A, the speed of the bus is 95 km/h. The average speed (in km/h) of the bus during the whole journey is: [SSC MTS 08/09/2023 (2nd Shift)]

Correct Answer: (d) 69⅔
Solution:

17. A student's marks were incorrectly entered as 44 instead of 86. Due to this, the average of the class got decreased by 3/2. What is the number of students in the class ? [SSC MTS 08/09/2023 (3rd Shift)]

Correct Answer: (b) 28
Solution:

18. The average weight of some students in class 12th was 56 kg. When seven students whose average weight was 58 kg joined the class, the average weight of all the students increased by 200 gm. Find the number of students in the class in the beginning? [SSC MTS 11/09/2023 (1st Shift)]

Correct Answer: (d) 63
Solution:

19. There are 75 students in the hostel. Due to new admissions, 15 new students join the mess, and the daily expenses of the mess increased by ₹240, while the average expenditure per head diminished by ₹5. What was the original expenditure (in ₹) of the mess? [SSC MTS 12/09/2023 (1st Shift)]

Correct Answer: (a) 3,450
Solution:

20. The average age of the boys in the class was 16 years. When 4 boys whose average age was 13 years are admitted to the class, the average age of the class was reduced by 6 months. How many boys were there initially in the class ? [SSC MTS 12/09/2023 (1st Shift)]

Correct Answer: (b) 20
Solution: