Question

two dice,one red and one white are rolled.what is the probability that the white die turns up a smaller number than the red die?

Answer 1

total number of events = \[6 \times6 = 36\]

let us calculate favorable number of events

when red is 6 , white can have 5,4,3,2,1 --> (6, 5)(6,4)(6,3)(6,2)(6,1) -->5 events

when red is 5, white can have 4,3,2,1 --> (5,4)(5,3)(5,2)(5,1) --> 4 events

when red is 4, white can have 3,2,1 --> (4,3)(4,2)(4,1) --> 3 events

when red is 3, white can have 2,1 --> (3,2) (3,1) --> 2 events

when red is 2, white can have 1 --> (2,1) --> 1 events

when red is 1, white can have none

so total favorable events = 5+4+3+2+1+0= 15

so probability = 15/36 = 5/12

answer is \[\frac{ 5 }{ 12 }\]

Answer 2

hi singh

Answer 3

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