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1. The average of 7 consecutive numbers is 20. The largest of these number is ---
- A. 23
- B. 23
- C. 23
- D. 23
Answer: Option A
Explanation:
ধরি, সংখ্যাগুলো, x - 3, x - 2, x - 1, x + 1, x + 2, x + 3
x - 3 + x - 2 + x - 1 + x + x + 1 + x + 2 + x + 3/7 = 20
7x/7 = 20
x = 20
বৃহত্তম সংখ্যাটি = x + 3 = 20 + 3 = 23
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