Question

Let m ( respectively, n ) be the number of 5 digit integers obtained by using the digits 1 , 2 , 3 , 4 , 5 with repetitions ( respectively, without repetitions) such that the sum of any two adjacent digits is odd. Then m/n is equal to

1) 9

2) 12

3) 15

4) 18

This is a question of KVPY SA 2018.

Plz give best explanation and give explanation with each every step.

Best explanation will be marked brainliest.

Answer 1

Buddy you have asked a question from kvpy it was tough I was exited while answering so I was unable to write neatly hope you understand I am in 8 th class you can understand my feeling of excitement