A 250 m train travels through a 2km tunnel at 27 km/hr. How long is it from the time the front of the train enters the tunnel, t o when it completely leaves it?
1 answer:
Answer:
5 min
Step-by-step explanation:
time taken=distance required to travel/speed of train
total distance train have to cover to just left the tunnel is (lenght of tunnel+length of train) =2km+250m
=2250m
speed of train is 27km/hr
multiply 5/18 to convert in m/s
i.e, (5/18)×27=7.5m/s
now time taken =2250m/(7.5m/s)
=300s
and,300s =5min
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Answer:
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[ Answer ]
[ Explanation ]
Area = 1420
Width =
Area For Rectangle: Length · Width
Use division to find width:
1420 ÷
Convert mixed numbers to fractions:
1420 =
Use mixed multiplication:
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Simplify:
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Cross multiply? 9x2=18/3= 6
I remember answering the same question, but you didn't attach any photos. But I remember that the answer is the first one.
I hope I helped. Stay safe and God bless!
- Eli <3
<h3>
Answer: B. 11 </h3>
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