The given graph (Fig 15.8) describes the distances of a car from a city P at different times when it is travelling from City P to City Q, which are 350 km apart. Study the graph and answer the following:(i)        What information is given on the two axes?(ii)      From where and when did the car begin its journey?(iii)     How far did the car go in the first hour?(iv)     How far did the car go during (i) the 2nd hour? (ii) the 3rd hour?(v)       Was the speed same during the first three hours? How do you know it?(vi)      Did the car stop for some duration at any place? Justify your answer.(vii)     When did the car reach City Q?

Explanation

(i) On the two axes – the x-axis shows the time and y-axis shows the distance of the car from city P.

(ii) The car begins its journey from city P at 8:00 a.m.

(iii) The car covered a distance of 50km in the 1st hour.

(iv) The car covered a distance of(a) 100 km in the 2nd hour.
(b) 50km in the 3rd hour.

(v) No the speed was not same, because the distance covered per hour is not uniform.

(vi) Yes, the car stopped at a place during the time interval 11a.m. to 12a.m. as indicated by horizontal line segment during this period.

(vii) At 2p.m. the car reached at the city Q.