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A die is rolled and a coin is tossed simultaneously. If the coin shows heads, the number on the die is multiplied by 3 to get the score. If the coin shows tails, the number on the die is multiplied by 4 to get the score. What is the probability of getting a score of 12 or 15?
  • a)
    1/6
  • b)
    1/4
  • c)
    1/3
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A die is rolled and a coin is tossed simultaneously. If the coin shows...
The probability of any number particular number appearing on when a dies is rolled is 1/6 and the probability that a coin shows heads (or tails) when it is tossed is 1/2.
12 = 3 x 4 = 4 x 3
12 can be obtained when the die shows 3 and the coin shows tails or when the die shows 4 and the coin shows heads.

15 can be obtained when the die shows 5 and the coin shows heads
Hence, option 2.
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A die is rolled and a coin is tossed simultaneously. If the coin shows heads, the number on the die is multiplied by 3 to get the score. If the coin shows tails, the number on the die is multiplied by 4 to get the score. What is the probability of getting a score of 12 or 15?a)1/6b)1/4c)1/3d)None of theseCorrect answer is option 'B'. Can you explain this answer?
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