Question : The average of nine numbers is 20. If two of these numbers are removed, then the average becomes 18. What is the sum of the two numbers that are removed?
Option 1: 56
Option 2: 58
Option 3: 54
Option 4: 52
Answer (1)
19th Jan, 2024
Correct Answer: 54
Solution :
An average of 9 numbers = 20
⇒ the sum of 9 numbers = 20 × 9 = 180
After two numbers are removed, the total number is 7
The new total is 18 × 7 = 126
⇒ the sum of 2 numbers removed = 180 – 126 = 54
Hence, the correct answer is 54.
Comments (0)
Related Questions
Know More about
Staff Selection Commission Multi Tasking ...
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Get Updates Brochure
Thank You!
Your Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.
Upcoming Exams
Mains Exam
Result Date:
4 Nov, 2024
- 11 Nov, 2024
Tier II
Admit Card Date:
12 Nov, 2024
- 12 Nov, 2024
Exam Date:
30 Sep, 2024
- 14 Nov, 2024
Application Date:
23 Sep, 2024
- 15 Nov, 2024
Mains Exam
Exam Date:
30 Nov, 2024
- 30 Nov, 2024
