a car starts at 10am at speed 60km/h and 2nd starts one hour later at 80km/h. at what time will the 2nd car overtake first? a 1pm b 2pm c 3pm d will never cross
Answers
Answer:
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Simple, I hope my answer Is clearer, I know none of the stuff the other answers said haha. I just use my guts and my BRAIN power :D
Car A travelling at 60km/h and due to 1 hour having passed, Car A is 60 kilometers ahead.
Car B travels at 80 km/h
80–60=20 means the car B goes 20 kilometers per hour faster.
Those 20km/h that B catches up to A, Means that out of this 60 kilometer headstart of A, We can calculate:
60/20=3
km/(km/h)= h
So 3 hours to catch up to A…
We know B starts 1 hour later, And A starts at 10 am.
So B starts at 11 am,
11+3=14
Then, My non english brain gets extremely confused, So I’ll just spurt out:
Guess it’s 2pm that car B catches up to A
Another possible answer is in a while longer. If B or A weren’t going in the same path and everything not the same, It could change time drastically, B could also not be going after A, But maybe through the northpole then back down the other side of the planet, While A goes around the equator, And one day… ONE DAY. They’ll crash into eachother.
I’m overthinking this :/