Praful travels from P to Q at a speed of 50 km/hr and Q to P at a speed of 30 km/hr. Find the average speed for the whole journey?
A35 km/hr
B37.5 km/hr
C40 km/hr
D42 km/hr
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If a man can cover 12 metres in one second, how many kilometres can he cover in 3 hours 45 minutes?
A man travels first 50 km at 25 km/hr next 40 km with 20 km/hr and then 90 km at 15 km/hr Then find his average speed for the whole journey (in km/hr)
ഒരു ബസ്സിന്റെ ശരാശരി വേഗത 24 കി മീ/മണിക്കൂര് ആണ് .എങ്കില് ആ ബസ്സ് 2 മണിക്കൂര് 20 മിനിറ്റ് കൊണ്ട് എത്ര ദൂരം സഞ്ചരിക്കും?
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A car travels at the speed of 50 km/hr for the first half of the journey and at the speed of 60 km/hr
for the second half of the journey. What is the average speed of the car for the entire journey?