Let 9 distinct balls be distributed among 4 boxes, B1,B2,B3 and B4. If the probability that B3 contains exactly 3 balls is k(43)9 then k lies in the set :
Held on 25 Jul 2021 · Verified 6 Jul 2026.
x∈R:∣x−3∣<1
x∈R:∣x−2∣≤1
x∈R:∣x−1∣<1
x∈R:∣x−5∣≤1
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