The average of 10 numbers is 15. If 2 is added to each number, what is the new…
2021
The average of 10 numbers is 15. If 2 is added to each number, what is the new average?
- A.
16
- B.
30
- C.
17
- D.
32
Attempted by 103 students.
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Correct answer: C
The property of averages states that if a constant 'k' is added to every element in a dataset, the mean also increases by 'k'.
Original average = 15.
Constant added to each number = 2.
New average = 15 + 2 = 17.
Final Answer: Option 3 (17)