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A five digit number of the form xyzyx is choosen then find probability such that x is less then y

A five digit number of the form xyzyx is choosen then find probability such that x is less then y

Grade:12th pass

2 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
6 years ago
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sid16 001
13 Points
5 years ago
The number of ways in which we can choose x and y and arrange in an order as X is less than Yis 9C2 here it is 9 C2 because Z had been already chosen .And the ways to select z is 10. So total ways are 9C2 * 10=360

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