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Mark the correct alternative in the following:
A fair die is thrown twenty times. The probability that on the tenth throw the fourth six appears is
Given:
Total outcomes= 610
Fourth 6 is at 10th place.
So other three 6 have to be placed at any of the remaining 9 places=9C356
For remaining 5 places we have 1,2,3,4&5
So total number of favorable cases