Mathematics · 2019
JEE Main · 12 January 2019, Shift 1 · Q87
In a random experiment, a fair die is rolled until two fours are obtained in succession. The probability that the experiment will end in the fifth…
In a random experiment, a fair die is rolled until two fours are obtained in succession. The probability that the experiment will end in the fifth throw of the die is equal to :
Official answer
(4)
$\displaystyle \frac{175}{6^5}$
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.