- A3 and 5
- B2 and 5
- C5 and 7
- D11 and 13
Step-by-Step Solution
2 + 5 = 7, which is odd. This happens because 2 is the only even prime; adding it to an odd prime gives an odd sum.
Answer: B) 2 and 5
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Prime and Composite Numbers practice questions