A pair of dice is rolled again and again till a total of 5 or a total of 7 is obtained…
Mathematics · JEE Main · NTA Exams — Statistics and Probability
A pair of dice is rolled again and again till a total of 5 or a total of 7 is obtained. The chance that a total of 5 comes before a total of 7 is
- \(\frac{2}{5}\)
- \(\frac{3}{7}\)
- \(\frac{3}{13}\)
- none of these
Answer
(A) 2 5
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