allery120 मीटर लंबी एक ट्रेन एक टेलीग्राफ के खंभे को 12 सेकंड में पार करती है। इसकी चाल क्या है?
A32 किमी/घंटा
B30 किमी/घंटा
C40 किमी/घंटा
D36 किमी/घंटा
Answer & Solution
Correct answer: D. 36 किमी/घंटा
यह 12 सेकंड में अपनी लंबाई के बराबर दूरी तय करती है, इसलिए 120 / 12 = 10 मीटर/सेकंड, जो कि 36 किमी/घंटा है।
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