Averages · Question 15 · Hard
Of three numbers, the first is twice the second and the second is twice the third. If their average is 56, what is the largest number?
- 72
- 96
- 84
- 112
Answer and explanation
Answer: B. 96
Explanation: Let the third be x; then the second is 2x and the first is 4x. 7x = 3 × 56 = 168 gives x = 24, so the largest is 96.
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