The average of 10 numbers is 14. If each number is decreased by 3, what is the new average? MCQ with Answer and Explanation

The average of 10 numbers is 14. If each number is decreased by 3, what is the new average?
A. 14
B. 8
C. 17
D. 11
Answer: Option D
Solution (By JKSSB Mock Tests)
New average =14-3=11.

This question belongs to: Maths Average
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Practice More Average Questions

Question #1
Average of 12 numbers 570. If average of 8 is 565, average of remaining 4?
A. 575
B. 578
C. 580
D. 582

Correct Answer: Option C


Explanation:
Sum12=6840. Sum8=4520. Remaining=2320. Average=580.

This question belongs to: Maths Average
Question #2
The average age of 6 students is 12 years. If the teacher's age is included, the average becomes 15 years. What is the teacher's age?
A. 33
B. 30
C. 27
D. 36

Correct Answer: Option A


Explanation:
Sum of 6 students' ages = 6×12=72. Sum of 7 persons = 7×15=105. Teacher's age = 105-72=33.

This question belongs to: Maths Average
Question #3
Average of 5 numbers 48. If average of 2 is 40, average of remaining 3?
A. 53.33
B. 50
C. 55
D. 52

Correct Answer: Option A


Explanation:
Sum5=240. Sum2=80. Remaining=160. Average≈53.33.

This question belongs to: Maths Average