WBJEE · Maths · Permutation Combination
Five balls of different colours are to be placed in three boxes of different sizes. The number of ways in which we can
place the balls in the boxes so that no box remains empty is
- A 160
- B 140
- C 180
- D 150
Answer & Solution
Correct Answer
(D) 150
Step-by-step Solution
Detailed explanation
Hint: \(3^5-{ }^3 \mathrm{C}_1(3-1)^5+{ }^3 \mathrm{C}_2 1^5-0=150\)
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