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Qn #1434
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Out of $2n + 1$ tickets, which are consecutively numbered, three are drawn at random. Then the probability that the numbers on them are in arithmetic progression is
A.
$\frac{n^{2}}{4n^{2}-1}$
B.
$\frac{n}{4n^{2}-1}$
C.
$\frac{3n}{4n^{2}-1}$
D.
$\frac{3n^{2}}{4n^{2}-1}$
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❓ Question: Out of $2n + 1$ tickets, which are consecutively n... | TANCET Group Studies | Tancet Group Studies