Math
How many positive four-digit integers do not contain any digits other than 1 or 0 and are such that the sum of the first two digits equals the sum of the last two digits?
A. 3
B. 4
C. 8
D. 10
E. 12
Question Discussion & Explanation
Correct Answer - A - (click and drag your mouse to see the answer)
Verbal
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do.
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity
Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the answer)
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