Question

The arithmetic mean of the numbers 7, 14, 21, ..., 63 is

• A. 38
• B. 37
• C. 36
• D. 35

Hint:

For equally spaced numbers, mean = (first term + last term) / 2.

Answer 1

The Correct Option is D

Concept: In an arithmetic progression, mean = average of first and last term. Explanation: First term = 7 Last term = 63 Mean: \[ \frac{7 + 63}{2} = \frac{70}{2} = 35 \]