A man goes to a place on bicycle at speed of 16 km/hr and comes back at lower speed. If the average speed is 6.4 km/hr in total journey, then the return speed (in km/hr) is :
A10
B8
C6
D4
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Related Questions:
A bus travelling at 96 km/h completes a journey in 16 hours. At what speed will it have to cover the same distance in 8 hours?
A and B are two cities. A man travels from A to B at a speed of 10 km/hr. and returns back at the speed of 30 km/hr. Find his average speed for whole journey.
Three friends are exercising together. The first friend runs a lap in 12 minutes, the second in 18 minutes, and the third in 24 minutes. If they all start running together, after how many minutes will they all finish a lap together again?
A person has to cover a distance of 8 km in 1 hour. If he covers one-fourth of the distance in one-third of the total time, then what should his speed (in km/h) be to cover the remaining distance in the remaining time so that the person reaches the destination exactly on time?
മണിക്കൂറിൽ 40 കിലോമീറ്റർ വേഗതയിൽ നോയിഡയിൽ നിന്ന് കാൺപൂരിലേക്ക് പോകുന്ന ഒരു ബസ്, കാൺപൂരിൽ നിന്ന് നോയിഡയിലേക്ക് മണിക്കൂറിൽ 60 കിലോമീറ്റർ വേഗതയിൽ തിരിച്ച് വരുന്നു. എങ്കിൽ ബസിന്റെ ശരാശരി വേഗത :