a car travelled a distance x km. in the first half with a speed of 10 km per hour. second half with the speed of 20 km per hour. third half with a speed of 60 km per hour. find the distance travelled by the car.
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Step-by-step explanation:
car has gone x k.m. first
10k.m. per hour.
second is 20 k.m. per hour.
third is 60 k.m. per hour.
the car travelled 90 k.m
and 3 hour.
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