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1. A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is the number?
- A. 3.5
- B. 3.5
- C. 3.5
- D. 3.5
Answer: Option C
Explanation:
Hints: ধরি সংখ্যটি, x
তাহলে, 3{2x + 9} = 75
2x + 9 = 25
2x = 25 - 9
x = 8
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