Averages · Question 22 · Medium
The average of A, B and C is 40. The average of A and B is 35, and the average of B and C is 42. What is B?
- 36
- 50
- 34
- 30
Answer and explanation
Answer: C. 34
Explanation: A + B + C = 120 and A + B = 70, so C = 50. B + C = 84, so B = 34.
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