Question : The average of the first 7 non-zero multiples of 17 is:
Option 1: 67
Option 2: 68
Option 3: 69
Option 4: 66
Answer (1)
16th Jan, 2024
Correct Answer: 68
Solution :
Average of the first 7 non-zero multiples of 17
= $\frac{17+(17×2)+(17×3)+(17×4)+(17×5)+(17×6)+(17×7)}{7}$
= $\frac{17(1+2+3+4+5+6+7)}{7}$
= $\frac{17×28}{7}$
= $17×4$
= 68
Hence, the correct answer is 68.
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