The given histogram shows the frequency distribution of the speed of cars passing through a particular spot on a
highway. Read the graph and answer the following question.

The number of cars with speed (km/h)in the interval (60 — 70) km/h is what percentage less than the number of
cars with speed (km/h)in the interval (70 — 80) km/h? (correct to one decimal place)

A

5.9%

B

5.6%

C

7.5%

D

8.6%