If you divide them together then you get the answer which is 10/6 or 5/3
Jeb took 1/4 of 100 minutes(1 hour 40 minutes) =25 minutes for the first lap. . so the rest 75 minutes , Jeb took 1/3 time so 25 minutes for the second lap , the third lap Jeb took 100-50 = 50 minutes .
-15.6 because the 15.6 is positive. the opposite is just the number in a negative form
