Q322
If a and b are odd numbers, then which of the following is even ?
A.
a + b + ab
B.
a + b - 1
C.
a + b + 1
D.
a + b + 2ab
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
a + b + 2ab is evenExplanation : Sum of two odd number is even number and multiplication of two odd number with 2 always given an even number.
Alternate :
Put , a = 3, b = 5, option (D) will satisfy