Mathematics, 04.04.2020 22:31 rileyjarvis87

Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr. How long after they leave the station will they be 50 km apart?

31 points if solved

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20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart, if the Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr.

Step-by-step explanation:

The given is,

One train travels at an average speed of 80 km/hr

The other travels at an average speed of 70 km/hr

Step:1

Formula to calculate the distance traveled by two trains,

Distance traveled by two trains = (Rate of speed of train one +

Rate of speed of other train) × Time

From the given the above equation becomes,

Let, h = Time taken to each the distance

50 = ( 80 + 70 ) h

50 = (150) h

$h = \frac{50}{150}$

= 0.3333 hours

= ( 0.333 × 60 ) ( ∵ 1 hr = 60 minutes )

h = 20 minutes

Step:2

Check for solution,

From equation (1),

50 = ( 80+70 ) (0.3333)

50 = (150)(0.3333)

50 = 50

Result:

20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart.

Answer from: Quest

depends on how many days you are talking about

step-by-step explanation:

Answer from: Quest

the answer is 9.8975

explanation:

when you multiply the "39.59" with the 25% it reduces it and shows its final discounted price. hope this !

step-by-step explanation:

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