Rohan and his sister Saniya go to school together in their car. Rohan drives much faster than Saniya. Saniya tells Rohan noy to take the risk of over speeding. She tells him that time taken to reach the school would depend upon average speed. By overspeeding for a little while, the risk involved is much greater compared to the little time saved.
Answer the following questions based on the above paragraph.
(i) Which values are displayed by Saniya ?
(ii) Is Saniya right in her statement ?
(iii) How do you define average speed ?

Explanation

(i) Saniya is displaying safety concerns for her brother in particular and all drivers in general.
(ii) Yes, Saniya's statement is perfactly correct.
(iii) `"Average speed" = ("total distance travelled")/("total time taken")`.