Question

train A takes 6h more than train B to cover a distance of 800km. If the speed of Train A is doubled it takes 2 h less than train B . What is the speed of Train B


with solution​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

80 km/hrs

Step-by-step explanation:

A= x + 6

We know that if the speed of train A is doubled:

2(x-2)=x+6

2x-4=x+6

2x-x=6+4

X=10

We calculate Train B's speed by:

B=800km/10 hrs

B= 80km/hrs