Question
A $300$ m long train running at $72$ km/h crosses a $500$ m long platform. How much time does it take? / $72$ किमी/घंटा की गति से चल रही $300$ मी लंबी ट्रेन $500$ मी लंबे प्लेटफॉर्म को पार करने में कितना समय लेगी?
Option 3 : $40$ seconds / $40$ सेकंड
Detailed Solution
सही उत्तर $40$ seconds / $40$ सेकंड है।
Speed = $72$ x $5$ / $18$ = $20$ m/s; distance = $300$ + $500$ = $800$ m; time = $800$ / $20$ = $40$ seconds. / गति = $72$ x $5$ / $18$ = $20$ मी/से; दूरी = $300$ + $500$ = $800$ मी; समय = $800$ / $20$ = $40$ सेकंड।
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prepsnap.in • GK + Current AffairsQuestion:
A $300$ m long train running at $72$ km/h crosses a $500$ m long platform. How much time does it take? / $72$ किमी/घंटा की गति से चल रही $300$ मी लंबी ट्रेन $500$ मी लंबे प्लेटफॉर्म को पार करने में कितना समय लेगी?
Correct Answer: $40$ seconds / $40$ सेकंड
Speed = $72$ x $5$ / $18$ = $20$ m/s; distance = $300$ + $500$ = $800$ m; time = $800$ / $20$ = $40$ seconds. / गति = $72$ x $5$ / $18$ = $20$ मी/से; दूरी = $300$ + $500$ = $800$ मी; समय = $800$ / $20$ = $40$ सेकंड।