SBI PO 07 May 2017 Papers

From 1 to 27 :
Odd numbers = 14
Even numbers = 13
The sum of numbers appearing at both cards will be odd if one card has odd number,other card has even number.
∴ Required probability =when first card is even and second card is odd + when first card is odd, other card is even
=

13

27

×

14

26

+

14

27

×

13

26

=

7

27

+

7

27

=

14

27