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Answer:
83.  Solution: The two single digit numbers totalizing eleven = 2 and 9, 3 and 8, 4 and 7, 5 and 6. (a+b=11) When placing these single digits numbers side by side we obtain 29 or 92, 65 or 56, 83 or 38, 47 or 74. We then establish the order (a>b): 92 and 29, 83 and 38, 74 and 47, 65 and 56. We now find the first two digit number which is 45 more than the second two digit number. Only one answer is possible: 83 - 38 Therefore the answer is 83. |
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