Book Maths Puzzle Numerical Ability Probability

a dice is rolled 6 times. 1,2,3,4,5 and 6 appears on consecutive throws of dice. how many ways are possible of having 1 before 6 ?

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6! Are the total ways....
Exactly half of them will have 1 before 6 and vice versa... So, 6!/2 =360.
8 years agoHelpfull: Yes(0) No(0)

@MANURAJ RAGHUWANSHI.. can you plz explain why half of 6! will have 1 before 6?
8 years agoHelpfull: Yes(0) No(0)

Book Other Question

In an examination,the maximum marks for each of three papers is 50 each.the max marks for the fourth paper is 100. find the number of ways with which a student can score 60% in aggregate.. (Provide detailed solution) A has forgotten the phone no. of his friend B. all he remembers is that the number has 8 digits,ended with an odd number and has exactly one 9. how many possible numbers does he have to try to make sure he has got the right number?