what equation is that? s(t)= 2t^3 - 15 t^2 + 24 t ?

According to CaptainBlack, A = 1, B = 4, s(10) = 740

so s(A) = 11

s(B) = -16

so distance travelled = |11 - 0| + |-16 - 11| + |740 + 16|

ah, maybe you made the mistake here, for the 2nd abs you had -1 not -11 and for the last you had 740 - 16, but it should be 740 - (-16) = 740 + 16

so distance traveled = 11 + 27 + 756 = 794

where did you get this hint from by the way? oh, nevermind, it seems to be common sense now that i look at it