COMEDK Exam 2012 Solved Paper

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Question : 155 of 180

Marks: +1, -0

If ‌

2

9!

+‌

2

3!7!

+‌

1

5!5!

=‌

2a

b!

, where a,b∈N, then the ordered pair (a,b) is

(10,9)
(10,7)
(9,10)
(5,10)

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