Question
A train running at $72$ km/h crosses a $400$ m long platform in $30$ seconds. What is the length of the train? / $72$ किमी/घंटा की गति से चल रही एक ट्रेन $30$ सेकंड में $400$ मी लंबे प्लेटफॉर्म को पार करती है। ट्रेन की लंबाई क्या है?
Option 4 : $200$ m / $200$ मी
Detailed Solution
सही उत्तर $200$ m / $200$ मी है।
Speed = $72$ x $5$ / $18$ = $20$ m/s; distance covered = $20$ x $30$ = $600$ m; train length = $600$ - $400$ = $200$ m. / गति = $72$ x $5$ / $18$ = $20$ मी/से; तय दूरी = $20$ x $30$ = $600$ मी; ट्रेन की लंबाई = $600$ - $400$ = $200$ मी।
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prepsnap.in • GK + Current AffairsQuestion:
A train running at $72$ km/h crosses a $400$ m long platform in $30$ seconds. What is the length of the train? / $72$ किमी/घंटा की गति से चल रही एक ट्रेन $30$ सेकंड में $400$ मी लंबे प्लेटफॉर्म को पार करती है। ट्रेन की लंबाई क्या है?
Correct Answer: $200$ m / $200$ मी
Speed = $72$ x $5$ / $18$ = $20$ m/s; distance covered = $20$ x $30$ = $600$ m; train length = $600$ - $400$ = $200$ m. / गति = $72$ x $5$ / $18$ = $20$ मी/से; तय दूरी = $20$ x $30$ = $600$ मी; ट्रेन की लंबाई = $600$ - $400$ = $200$ मी।