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1. Average of the five consecutive even number is 8. Which is the smallest of the 5 numbers?
- A. 4
- B. 4
- C. 4
- D. 4
Answer: Option A
Explanation:
পাঁচটি constant even number ধরি, n, n + 2, n + 4, n + 6, n + 8
যোগফলকে 5 দিয়ে ভাগ করলে average পাওয়া যায় n + 4
তাহলে, n + 4 = 8 বা n = 4
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