NIMCET 2014 Question Paper with solutions

Question : 9 of 120

Marks: +1, -0

The number of ways in which 5 days can be chosen each of the 12 months of a non-leap year, is

Solution:

In a leap year,
7 months have 31 days 4 months have 30 days and 1 month (Feb) has 28 days
Total numbers of ways
=

(\,↖{30}C_5)^4

(\,↖{31}C_5)^7

(\,↖{28}C_5)

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