In covering a distance of 72 km, Amit takes 5 hours more than Vinay. If Amit doubles his speed, then he would take 7 hour less than Vinay. Amit's speed is:
A1 km/h
B3 km/h
C5 km/h
D6 km/h
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മണിക്കൂറിൽ 40 കി.മീ. വേഗത്തിൽ സഞ്ചരിക്കുന്ന ഒരു വാഹനം 60 കി.മീ. സഞ്ചരിക്കുന്നതിന് എത്ര സമയമെടുക്കും?
A person travelled at 80 km/h from x toy, from y to x at 60 km/h and again travelled to y at a speed of 30 km/h find the average speed of all journey?
ഒരു മിനിറ്റിന്റെ എത്ര ഭാഗമാണ് 5 സെക്കൻഡ്?
The distance between the places H and O is D units. The average speed that gets a person from H to O in a stipulated time is S units. He takes 20 minutes more time than usual if he travels at 60 km/h, and reaches 44 minutes early if he travels at 75 km/h. The sum of the numerical values of D and S is:
A girl goes to school at a speed of 10 km/hr. She comes back with a speed of 40 km/hr.
Find her average speed for the whole journey.