Question

if n and p are both odd number which of the following is even number? 1) n+p 2) n+p+1 3)np+2 4) np

Answer 1

option 1 is correct
Reason
Let for example:
n=1
p=3
option 1:   1+3 =4 even number
           2:    1+3+1 = 5 odd number
           3:   1x3 +2 = 5  odd number
           4:    1x3  =3  odd number

so answer is option 1

Answer 2

Answer:

option 1 is correct

Reason

Let for example:

n=1

p=3

option 1:   1+3 =4 even number

          2:    1+3+1 = 5 odd number

          3:   1x3 +2 = 5  odd number

          4:    1x3  =3  odd number

so answer is option 1

Step-by-step explanation: