Question 373282
D=RT
D=16T
D=21(3-T)
16T=21(3-T)
16T=63-21T
16T+21T=63
37T=63
T=63/37
T=1.703 HOURS FOR THE 16 HOUR TRIP.
3-1.703=1.297 HOURS FOR THE 21 HOUR TRIP.
PROOF:
16*1.703=21*1.297
27.2=27.2 MILES ANSWER.