alleryएक सवार आधे समय के लिए 40 किमी/घंटा और शेष आधे समय के लिए 60 किमी/घंटा की चाल से चलता है। औसत चाल क्या है?
A48 किमी/घंटा
B50 किमी/घंटा
C54 किमी/घंटा
D52 किमी/घंटा
Answer & Solution
Correct answer: B. 50 किमी/घंटा
समान समय के लिए औसत चाल साधारण समांतर माध्य होती है, (40 + 60) / 2 = 50 किमी/घंटा।
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