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Question: Two disc are rolled simultaneously. The probability that the sum of the two numbers on the top faces...

Two disc are rolled simultaneously. The probability that the sum of the two numbers on the top faces will be atleast 10 is

A

1/6

B

1/12

C

1/18

D

None of these

Answer

1/6

Explanation

Solution

P(10 or 11 or 12) = P(10) + P(11) + P(12)

= 3+2+136=16\frac { 3 + 2 + 1 } { 36 } = \frac { 1 } { 6 }