If a bus travels 160 km in 4 hours and a train travels 320km in 5 hours at uniform speeds, then the ratio of the distances travelled by them in one hour is

As speed =

Speed of bus = 40km/hr

Speed of train = 64km/hr

Distance travelled in 1 hr by bus = 40km

Distance travelled in 1 hr by train = 64km

Ratio of distance travelled by bus to train =

In questions 11 to 15, find the missing number in the box in each of the proportions:

Let blank = x