Sandra left Calgary driving north at 90 km/h. Paul left Calgary 2 hours later (10:00 a.m.) at 110
km/h. What time did Paul catch up to Sandra?
+47 Time(Hours): \( 1 \space \space \space \space \space \space 2 \space \space \space \space \space 3 \space \space \space \space \space 4 \space \space \space \space \space 5 \space \space \space \space \space 6 \space \space \space \space \space 7 \space \space \space \space \space 8 \space \space \space \space \space 9 \space \space \space \space \space 10 \space \space \space \space 11 \)
Sandra(km): \( 90\space \space \space 180\space\space\space 270\space\space\space 360\space\space\space 450\space\space\space 540\space\space 630 \space\space\space 720 \space\space\space 810\space\space\space 900 \space\space\space 990\)
Paul(km): \(\space \space \space110 \space \space 220 \space \space 330 \space \space \space 440 \space \space \space 550 \space \space \space 660 \space \space \space 770 \space \space \space 880 \space \space \space 990\)
\(x(90)= [x-2](110)\)
Answer: \(11\space hours\)
