Question

The speed of two trains are in the ratio of 3:5.If the speed of the 1st train is15km/hr,then what is the

speed of the second train?

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Answer 1

Answer:

speed of the second train is 25 km/hr

explain

let the speed of 1st train is 3x

speed of second train be 5x

if speed of 1st is 15km/hr

then, 3x=15km/hr

x=15km/3=5km/hr

so speed of 2nd train will be

5x=5x5km=25km/hr

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Answer 2

Answer:

Speed of second train = 9km/hr

9:15

=3:5

Step-by-step explanation:

3:5

=2nd train:1st train

=x:15

=x/15 = 3/5

=x = 3/5*15/1

=x = 45/5

=x = 9