The ratio between the speed of two trains is 7:8 if the second train runs 400kms in 5 hours the speed of the the first train is
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2
400÷5=80
7:8
70:80
70×5=350ans
7:8
70:80
70×5=350ans
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10
let the speed of both the trains are 7x and 8x.
V2 = s2 / t2
= 400 / 5 = 80kmph
speed of second train = 80
8x = 80
x = 80 / 8 = 10
Speed of 1st train = 7x = 7 × 10
= 70kmph
Thanks
V2 = s2 / t2
= 400 / 5 = 80kmph
speed of second train = 80
8x = 80
x = 80 / 8 = 10
Speed of 1st train = 7x = 7 × 10
= 70kmph
Thanks
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