Maths-
General
Easy
Question
A double decker bus can accommodate (u + ) passengers, u in the upper deck and in the lower deck. The number of ways in which the (u + ) passengers can be distributed in the two decks, if r () particular passengers refuse to go in the upper deck and S(u) refuse to sit in the lower deck, is -
- u–SC–r
-
- u–SP–r
-
The correct answer is:
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