alleryएक चालक 40 किमी/घंटा की चाल से 3 घंटे और फिर 60 किमी/घंटा की चाल से 2 घंटे गाड़ी चलाता है। औसत चाल क्या है?
A46 किमी/घंटा
B48 किमी/घंटा
C50 किमी/घंटा
D52 किमी/घंटा
Answer & Solution
Correct answer: B. 48 किमी/घंटा
कुल दूरी 5 घंटे में 120 + 120 = 240 किमी है, इसलिए औसत चाल = 240 / 5 = 48 किमी/घंटा है।
Keep practising Time, Speed and Distance
Browse all Time, Speed and Distance questions for RRB NTPC, or explore more Quantitative Aptitude topics.
Related questions
Which vehicle dashboard instrument directly indicates instantaneous speed?What speed in kilometres per hour is exactly equivalent to 1 metre per second?How is average speed computed from total distance d and time t?A boy walking at 5 km/h is 6 minutes late, but at 6 km/h he is 6 minutes early. How far isTwo cyclists leave one point in opposite directions at 12 km/h and 8 km/h. How far apart aTo change a speed from m/s to km/h you multiply by which number?A vehicle running at 50 km/h would cover about how far in a single minute?A swimmer clocks 10 m/s in a short sprint. In km/h this is?