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6. The speed of a car is 60 km/hr and it covers a certain distance in 6 hours. How much shouldbe the speed of car to cover the same distance in 5 hours?7. A factory requires 28 machines to make some shirts in 20 days. If 4 machines are not working​

Answer»

Answer:

SPEED is distance upon time

so TAKE distance as x

then 60=x/6

x=360

now new speed will again be distance upon time

so speed=360/5=72

thus new speed = 72km/hr



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