RRB Technician 2014 Ques 3
Question: If a is an even positive integer and b is an odd positive integer, then which of the following statement is true?
Options:
A) $ a(b-1) $ is even
B) $ a(b-1) $ is odd
C) $ (a-1),(b-1) $ is even
D) $ (a-1),b $ is even
Show Answer
Answer:
Correct Answer: A
Solution:
- As, a is even and $ (b-1) $ will be even, so $ a(b-1)= $ even integer.
BETA
