GATE XE (Engineering Sciences) 2018 - Question 7

Section: General Aptitude | Marks: 2

Given that 𝑎 and 𝑏 are integers and 𝑎+ 𝑎2 𝑏3 is odd, which one of the following statements is correct?

• A. 𝑎 and 𝑏 are both odd
• B. 𝑎 and 𝑏 are both even
• C. 𝑎 is even and 𝑏 is odd
• D. 𝑎 is odd and 𝑏 is even

Answer: D. 𝑎 is odd and 𝑏 is even