alleryचढ़ाई पर जाते समय एक लॉरी की औसत चाल 20 किमी/घंटा है और उसी सड़क से नीचे उतरते समय 30 किमी/घंटा है। पूरी यात्रा के लिए औसत चाल क्या है?
A22 किमी/घंटा
B25 किमी/घंटा
C24 किमी/घंटा
D26 किमी/घंटा
Answer & Solution
Correct answer: C. 24 किमी/घंटा
समान दूरी होने पर औसत चाल = 2 x 20 x 30 / 50 = 24 किमी/घंटा।
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