The ordered pairs of natural numbers are contained in P are ______ and ______
A. (145, 265) and (0, 153)
B. (22, 101) and (0, 153)
C. (101, 22) and (145, 265)
D. (101, 22) and (0, 153)
Answer:D
The ordered pairs of natural numbers are contained in P are ______ and ______
A. (145, 265) and (0, 153) B. (22, 101) and (0, 153) C. (101, 22) and (145, 265) D. (101, 22) and (0, 153)
Explanation: For ordered pair (a, b), to be in P, each digit in a starting from unit place must not be larger than the corresponding digit in b. This condition is satisfied by options (iii) (145, 265) => 5 ≤ 5, 4 < 6 and 1 < 2; (iv) (0, 153) => 0 < 3 and no need to examine further.