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1. A person was asked to state his age in years. His reply was, 'Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am' What was the age of the person ?
- A. 18 years
- B. 18 years
- C. 18 years
- D. 18 years
Answer: Option A
Explanation:
ধরি, লেকটির বয়স x বছর
প্রশ্নমতে লোকটির
বয়স = ( x + 3) × 3 - 3 ( x - 3) বছর
= 3x + 9 - 3x + 9
= 18 বছর
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