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nCr Definitions and Properties

The members o...

Question

The members of a class are standing in a line. Ravi is 32nd in line counting from one end and 12th in line counting from the other. How many students are in the class?

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Solution

If the Ravi is 32nd in line from one end and 12th in line counting from the other then the no. of student in the class= $32 + 12 - 1 = 43$

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