MHT-CET

Binomial Theorem question bank (Mathematics)

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Q1.

If ${ }^{11} \mathrm{C}_4+{ }^{11} \mathrm{C}_5+{ }^{12} \mathrm{C}_6+{ }^{13} \mathrm{C}_7={ }^{14} \mathrm{C}_{\mathrm{r}}$, then value of $\mathrm{r}$ is

(A)
11
(B)
14
(C)
7
(D)
3
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