Ratio between speeds of 2 trains is 5 3

Asked by admin @ in Physics viewed by 333 People

ratio between speeds of 2 trains is 5:3. if the first train runs 350 km in 2 hours then what is the speed of the second train? a)100 kmph b)115 kmph c)105 kmph d)210 kmph answer:c explanation: (speed of train 1 / speed of train 2 ) = 5/3 (175 / s2 ) = 5/3 gives u105kmph

Answered by admin @


HEY BUDDY..!!!

HERE'S THE ANSWER..

________________________

▶️ First we'll find the speed of first train , as we are given

⏺️ Speed = ?

⏺️ Distance = 350 Km

⏺️ time = 2 Hour

✔️ We know


♠️ Speed = distance / time

=> speed = 350 / 2

=> speed = 175 Km / h

▶️ So speed of first train is [ 175 Km / h ] = S1

⏺️ Now it is given speed of first train ( S1 ) and speed of second train ( S2 ) are in ratio of 5 : 3

✔️ Then

♠️ S1 / S2 = 5 / 3

=> S1 / S2 = 5 / 3

=> S2 = 3 . S1 / 5

=> S2 = 3 × 175 / 5

=> S2 = 3 × 35

=> [ S2 = 105 Km / h ]

▶️ Speed of second train is 105 Km / h

♠️ Hence option ( c ) is correct.



HOPE HELPED..


JAI HIND!!


:-)

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