Two train, each 700 meters long, are moving in opposite directions at speeds of 45 km/h and 55 km/h. How long will it take for the train to completely pass each other?
Two train, each 700 meters long, are moving in opposite directions at speeds of 45 km/h and 55 km/h. How long will it take for the train to completely pass each other?
दो रेलगाड़ियाँ, जिनमें से प्रत्येक 700 मीटर लंबी है, 45 किमी/घंटे और 55 किमी/घंटे की गति से विपरीत दिशाओं में चल रही हैं। रेलगाड़ियों को एक -दूसरे को पूरी तरह से पार करने में कितना समय लगेगा?
Detailed Solution & Logic
Correct Answer:
50 seconds
Time = समय
distance = दूरी
total distance / कुल दूरी = 700 + 700 = 1400 m
सापेक्ष गति / relative speed = 45 +55 = 100 km/h
=$ 100 \times \frac{15}{18} =27.78$ m/s
Time = distance $ \div $ speed
= $ \frac{1400}{27.78} = 50 $ seconds
Similar Practice Questions
If the eight-digit number 59044p22 is divisible by 6, then the maximum value of p is:
If the eight-digit number 59044p22 is divisible by 6, then the maximum value of p...
A class of 60 students has an average score of 75.
A class of 60 students has an average score of 75. If 5 new students...
20% of a number is more than 20% of 620 by 210. The number is:
20% of a number is more than 20% of 620 by 210. The number is:...
Find the simple interest (in₹) on ₹3500
Find the simple interest (in₹) on ₹3500 as a sum borrowed at 7% per year...
What is the measure of each interior angle of a regular polygon with 8 sides?
What is the measure of each interior angle of a regular polygon with 8 sides?...
₹10,415 is divided among P, Q, and R in such a way that if ₹62, ₹17, and ₹79 are deducted from their respective shares, they have money in the ratio 15:10:14.
₹10,415 is divided among P, Q, and R in such a way that if ₹62,...
A vendor started selling vegetables at ₹10 per kg, but couldn’t find buyers at this rate.
A vendor started selling vegetables at ₹10 per kg, but couldn’t find buyers at this...