Two dice are thrown together. What is the probability that sum of the numbers and two dice is 5 or number on the second die is greater than or equal to the number on first die?
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Step-by-step explanation:
The first condition is satisfied by 4 ways,(1,4 2,3 3,2 and 4,1). The second condition is satisfied by 21 arrangements. considering the 2 common pairs , altogether we have 23 out of 36. Hence the probability is 23/36.
krisha061102:
the 2nd condition is satisfied by 15 conditions in which 2 pairs are common i.e. (1,4) and (2,3)
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