Question

Juhi travelled a distance of 16 km by bicycle at the speed of 15 km per hour, 20 km by scooter at the speed of 50 km per hour and 50 km by car at the speed of 60 km per hour. The total time (in minutes) to travel these distances was

• A. 144
• B. 138
• C. 88
• D. 114

Answer 1

The correct option is B 138

Travel by bicycle:
Distance = 16 km ; Speed : 15 km/hr : So time taken $=\frac{distance}{speed}=\frac{16}{15}\times 60$ minute = 64 minutes
Travel by Scooter:
Distance = 20 km ; Speed : 50 km/hr : So time taken = $\frac{distance}{speed}=\frac{20}{50}\times 60$ minute = 24 minutes
Travel by Car:
Distance = 50 km ; Speed : 60 km/hr : So time taken = $\frac{distance}{speed}=\frac{50}{60}\times 60$ minute = 50 minutes
Total time taken = 64 + 24 + 50 = 138 minutes.