The average of a, b, c is 6 and a - b = 4, ab = 21. What is the value of c?

1. The average of a, b, c is 6 and a - b = 4, ab = 21. What is the value of c?

[Senior Officer (Financial Analyst) 2020 [MCQ] : 2020]

1. 6

2. 7

3. ৪

4. 9

Answer

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