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1. The average of 3 numbers is 24. If 2 of the number are 21 and 23,what is the 3rd number?
- A. 20
- B. 20
- C. 20
- D. 20
Answer: Option D
Explanation:
Let, third number is x
so, (x + 21 + 33)/3 = 24
বা, x = 72 - 44 = 28.
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