Mathematics · 2019
JEE Main · 12 April 2019, Shift 2 · Q86
A person throws two fair dice. He wins Rs. 15 for throwing a doublet (same numbers on the two dice), wins Rs. 12 when the throw results in the sum of…
A person throws two fair dice. He wins Rs. $\displaystyle 15$ for throwing a doublet (same numbers on the two dice), wins Rs. $\displaystyle 12$ when the throw results in the sum of $\displaystyle 9$, and loses Rs. $\displaystyle 6$ for any other outcome on the throw. Then the expected gain/loss (in Rs.) of the person is :
Official answer
(2)
$\displaystyle \frac{1}{2} \text { loss }$
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.