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The number lock of a suitcase has 4 w...

The number lock of a suitcase has 4 wheels, each labelled with ten digits i.e. from 0 to 9. The lock opens with a sequence of four digits with no repeats. What is the probability of a person getting the right sequence to open the suitcase.

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The correct Answer is:
Required probability =`1/(5040)1
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