P, Q, R and S are four 4-digit numbers, each having the digit 9 only once and, in the place, as shown. None of the other digits are
known. What can be said with certainty about P, Q, R and S?
P ( 9 _ _ _ ) Q ( _ 9 _ _ ) R ( _ _ 9 _ ) S ( _ _ _ 9 )
1. S is the smallest of the 4 numbers. 2. Q is larger than R 3. P is the largest of the 4 numbers 4. S is the only odd number among the 4 numbers
