StreakPeaked· Practice

ExamsJEE MainMaths

For integers m and n, each exceeding 1, let the statements be: P: m is a divisor of n, Q: m is a divisor of n², and R: m is a prime number. Which of the following implications is true?

  1. Q ∧ R → P
  2. P ∧ Q → R
  3. Q → R
  4. Q → P

Correct answer: Q ∧ R → P

Solution

If m is prime and m divides n^2, then a prime dividing a square must divide the base, so m divides n. Thus Q ^ R -> P is the valid implication; the others fail (e.g. m=4,n=2 breaks Q->P).

Related JEE Main Maths questions

⚔️ Practice JEE Main Maths free + battle 1v1 →