The distance covered by a car is directly proportional to the time taken. the car covers 91km in 3.5hours. how far does it cover in 2.5 and if it travels 110.5km how long has it been travelling

91 / 3.5 = 26 km per hour.
2.5 * 26 = 65 km
110.5 / 26 = 4.25 hours

Divide 91 by 3.5 that will give how many km per hour

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.