Answer:
107 seconds
Step-by-step explanation:

Time taken to travel 1.5 Km at a speed of 85 km/h=

Time taken to travel 0.8 Km at a speed of 67 km/h =

Total distance= 1.5+0.8=2.3 km
Total time=0.017647059+0.011940299=0.029587357 hours
Converting hours to seconds, we multiply hours by 3600 hence total time=0.029587357*3600=106.5144864 seconds,
Rounding off, time=107 seconds