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Among three numbers, the first equals 4 times the second and also 3 times the third. If the average of the three numbers is 95, find the third number.

1. 57
2. 76
3. 130
4. 60

Correct answer: 60

Solution

Let the first number be x. Then second = x/4 and third = x/3. Sum = x + x/4 + x/3 = 285, giving x = 180. The third number = 180/3 = 60.

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