MBA Exam

In a room there were 7 persons, the chance that 2 of them were born on the same day of the week

1) 1080/7^5
2) 2160/7^5
3) 1010/7^5
4) not

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MBA Other Question
(6^83+8^83) MOD 49 = ???Plz explain... Dont have the soln..

What is the probablity of two personsamong the four having birthday in he same month?A. 75%B. 50%C. 33%

1) 75%
2) 50%
3) 33%
4) 13%