Are the following statements true?
`45 km : 60 km= 12 hours:15 hours.`

Which of the following statements are true or false? 80 km is equivalent to 0.08 m.

Give a proper fraction for the following statements Ria sleeps 8 hours of a day

State whether the following statements are always true, always false or ambigous. Justify your answer : The distance from the Earth to the Sun is approximately 1.5 xx 10^8 km.

Answer the following A bus travels at v km per hour. It is going from Daspur to Beespur. After the bus has traveled for 5 hours. Beespur is still 20 km away. What id the distance from Daspur to Beespur? Express it using v.

Find the ratio of the following: 30 minutes ot 1.5 hours

Find the ratio of the following : 33 km to 121 km

Represent the following situations in the form of quadratic equations: A train travels a distance of 480 km at a uniform speed. If the speed had been 8km/h less, then it would have taken 3 hours more to cover the same distance. We need to find the speed of the train.