Question

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A train travels 300km in 6 hours. How long will it take to complete a journey of 550km?

Answer 1

speed of train :

• 
  `(distance \: \: covered)/(time)`

• 
  `(300)/(6)`

• 
  `50 \: km \: h {}^( - 1)`

time taken to complete the journey of 550 km :

• 
  `(distance \: \: to \: \: be \: \: covered)/(speed)`

• 
  `(550)/(50)`

• 
  `11 \: hr`

for completing journey of 550 km, it took 11 hours

Answer 2

11 hours

Explanation:

We know that speed= distance/time

the train traveled for 300 km(distance) in 6 hours (time) from those information we can calculate the speed

speed = distance/ time

speed = 300km/6hours = 50 km/hr

we have the speed now we will consider the train move in a constant speed

they want the time for distance of 550 km

we use the same law

speed = distance/time

time= distance/speed

time = 550/50 = 11 hours the time to complete 550 km