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QUESTION
Q
Two different prime numbers X and Y, both are greater than 2, then which of the following must be true ?
Solution
All the prime numbers greater than 2 are odd numbers.X + Y ≠ 87 (sum of two odd numbers is even).
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Product of odd numbers is always odd.Ex: 3 × 5 = 15Product of even numbers is always even.Ex: 2 × 4 = 8Product of an even and an odd number is always even.Ex: 2 × 3 =6Sum of even number of odd numbers...
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