The number of values of $a \in N$ such that the variance of $3,7,12 a, 43-a$ is a natural number is (Mean $=13$)
The number of values of $a \in N$ such that the variance of $3,7,12 a, 43-a$ is a natural number is (Mean $=13$)
- [JEE MAIN 2022]
- A
$0$
- B
$2$
- C
$5$
- D
infinite
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