Mathematics · 2020
JEE Main · 8 January 2020, Shift 1 · Q55
If a, b and c are the greatest values of ^19 C_p,^20 C_q and ^21 C_r respectively, then:
If a, b and c are the greatest values of $\displaystyle { }^{19} \mathrm{C}_{\mathrm{p}},{ }^{20} \mathrm{C}_{\mathrm{q}}$ and $\displaystyle { }^{21} \mathrm{C}_{\mathrm{r}}$ respectively, then :
Official answer
(4)
$\displaystyle \frac{a}{11}=\frac{b}{22}=\frac{c}{42}$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.