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
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
The HCF of 36, 45 and 54 is _____.
The HCF of 36, 45 and 54 is _____. 36, 45 और 54 का HCF...
The speed of a stream is 9 km/h.
The speed of a stream is 9 km/h. A boat can go 56 km downstream...
A vendor bought lemons at 7 for ₹1.
A vendor bought lemons at 7 for ₹1. How many lemons must he sell for...
Find the mean proportion of 5.76 and 0.88. (rounded off to two decimal places)
Find the mean proportion of 5.76 and 0.88. (rounded off to two decimal places) 5.76...
\(\frac{4.8\times 0.36\times 0.28}{0.8\times 0.12}\)
Simplify / निम्नलिखित को सरल कीजिए: \(\frac{4.8\times 0.36\times 0.28}{0.08\times 0.12}\)
A wholesaler sells a tin of soybean oil for ₹5,720 and incurs a loss of 12%. Now, if he decides to sell the second tin of soybean oil for ₹7,475, find his profit percentage in the sale of the second tin.
A wholesaler sells a tin of soybean oil for ₹5,720 and incurs a loss of...
LCM and HCF of two numbers are 66 and 11
LCM and HCF of two numbers are 66 and 11 respectively. If one of the...