31. Combination Lock A combination lock has 60 different positions. To open the lock, the dial is turned to a certain number in the clockwise direction, then to a number in the counterclockwise direction, and finally to a third number in the clockwise direction. If successive numbers in the combi- nation cannot be the same, how many different combinations are possible? 50 10 40 20. 30

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A: Given,          fx=x-5

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A: a)

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A:

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A:

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A: given :

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A:

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A:

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