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Roshan ranked...

Question

Roshan ranked 11 th from the top and thirty one from the bottom in a class. How many students are there in the class?

A

42

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B

43

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C

41

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D

40

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Solution

The correct option is C 41
$T_{r} = 11$ , $B_{r} = 31$
$\Rightarrow$ no. of students $= T_{r} + B_{r} - 1 = 11 + 31 - 1 = 41$

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