IQ Teaser #51
Given the first 4 sets of numbers, decide what number should replace the ?? in the last set (HINT: look for an answer that accounts for ALL of the numbers in the sets):
18    70

   15


30    90

   12


17    20

   15


12    80

   12


13    50

   ??
10
11
12
13
14
15
16
17
18
None of the above

view results