alleryएक टैक्सी 30 किमी/घंटा की चाल से 60 किमी जाती है और 60 किमी/घंटा की चाल से वही 60 किमी वापस आती है। पूरी यात्रा (आने-जाने) के लिए औसत चाल क्या है?
A45 किमी/घंटा
B36 किमी/घंटा
C40 किमी/घंटा
D50 किमी/घंटा
Answer & Solution
Correct answer: C. 40 किमी/घंटा
कुल 120 किमी की दूरी में 2 घंटे + 1 घंटा लगता है, इसलिए औसत चाल = 120 / 3 = 40 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?