Question

Two dice are rolled. Find sum of numbers P(sum of 5 or sum that is a multiple of 2).

Answer 1

Step-by-step explanations

Two balanced dice are rolled simultaneously. Find the probability of the following events:

(1) The sum of the numbers on those dice is a multiple of 4

(2) The sum of the number on those dice is a multiple of 4 or 5

December 26, 2019avatar

Alina Chandrasekar

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ANSWER

Probability=

Total no. of outcomes

No. of favourable outcomes

Here, possible sum when two perfect dice are rolled simultaneously ={2,3,4,5,6,7,8,9,10,11,12}

So, total outcomes =11

(1) Favourable outcomes = sum is multiple of 4

={4,8,12}=3

Probability =3/11

(2) Favourable outcomes = sum is multiple of 4 or 5

={4,5,8,10,12}=5

Probability =5/11