JEE PYQ

[JEE Main 2003] a student answers 10 of 13 questions choosing at least 4 of the first

VAVidaara Admin Asked 2d ago 0 views 1 answer
#PYQJEE#JEE#JEE Main#2003#selections#Permutations and Combinations

A student answers $10$ of $13$ questions, choosing at least $4$ of the first $5$. The number of choices is

(a) $346$
(b) $140$
(c) $196$
(d) $280$

1 Answer

VAVidaara Admin ✓ Vidaara Team ✓ Accepted · 2d ago ▲ 0

Correct answer: (c) $196$

Exactly $4$ of first $5$: $\binom54\binom86=140$; all $5$: $\binom55\binom85=56$. Total $196$.

JEE Main 2003 · Permutations and Combinations — verified solution by the Vidaara Team.

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