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TS EAMCET · Maths · Probability

Two dice A and B are rolled. If it is known that the number on B is 5, then the probability that the sum of the numbers on the two dice will be greater than 9 is

  1. A 13
  2. B 14
  3. C 15
  4. D 12
Verified Solution

Answer & Solution

Correct Answer

(A) 13

Step-by-step Solution

Detailed explanation

Let, X be the event when sum of digits on the two dice is greater than 9 and Y be the event when the number on the dice B is 5. ⇒X∩Y∈5,5, 6,5 Now, PXY=PX∩YPY ⇒PXY=23616 ⇒PXY=13
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