jee-main 2023 Q89

jee-main · India · session2_12apr_shift1 Measures of Location and Spread
Two dice $A$ and $B$ are rolled. Let the numbers obtained on $A$ and $B$ be $\alpha$ and $\beta$ respectively. If the variance of $\alpha - \beta$ is $\frac { p } { q }$, where $p$ and $q$ are co-prime, then the sum of the positive divisors of $p$ is equal to
(1) 72
(2) 36
(3) 48
(4) 31 
Two dice $A$ and $B$ are rolled. Let the numbers obtained on $A$ and $B$ be $\alpha$ and $\beta$ respectively. If the variance of $\alpha - \beta$ is $\frac { p } { q }$, where $p$ and $q$ are co-prime, then the sum of the positive divisors of $p$ is equal to\\
(1) 72\\
(2) 36\\
(3) 48\\
(4) 31
Paper Questions
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