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Practicing real exam questions helps you understand the exam pattern, improve accuracy, and boost your JEE score. Perfect for students aiming for top ranks in IIT-JEE.","tags","jee main joint entrance examination india","version","vip","location",{"_391":392,"_393":394},"type","Point","coordinates",[395,396],79.0888,21.1466,"in","priority",11,"createdOn",1756744302186,"updatedOn","questionsCount",24748,"courseCount",9,"examKey","questionData",{"_369":410,"_411":412,"_413":414,"_278":416,"_417":418,"_263":370,"_419":420,"_421":422,"_110":427},"FMuE5xLxknrIqCLsDPJrTjhFU8ZvMx","q","The number of ways of choosing 10 objects out of 31 objects of which 10 are identical and the remaining 21\nare distinct, is :","ans",[415],1,"2019 - 12th April Morning Slot","course","mathematics","exp","²¹C₀ + ²¹C₁ + ²¹C₂ + ....... + ²¹C₁₀ = $${{{2^{21}}} \\over 2} = {2^{20}}$$","opts",[423,424,425,426],"2²⁰ - 1","2²⁰","2²⁰ + 1","2²¹",22,"22","initComment","initReply","actionData","errors"]

JEE MAIN - Mathematics (2019 - 12th April Morning Slot - No. 22)

Explanation

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