(A) 11.14 Km/h
(B) 12.87 Km/h
(C) 14.86 Km/h
(D) 16.54 Km/h
Correct Option is: C
Total distance travelled
=14+16=30Km
Time taken to travel 14 km at an average speed of 16 km/hr
=14/16=7/8 Hr
Time taken to travel 16 km at an average speed of 14 km/hr
=16/14=8/7 hr
Total time taken =7/8+8/7
Average speed =Total distance travelled /Total time taken
=30/(7/8+8/7)
=30/(113/56)
=30*56/113=1680/113
=14.86 km/hr