Question

6. The speed of a car is 60 km/hr and it covers a certain distance in 6 hours. How much should
be 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 1

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