Q. 715.0( 1 Vote )

The following graph shows the journey made by two cyclists, one from town A to B and the other from town B to A.

A) At what time did cyclist II rest? How long did the cyclist rest?

B) Was cyclist II cycling faster or slower after the rest?

C) At what time did the two cyclists meet?

D) How far had cyclist II travelled when he met cyclist I?

E) When cyclist II reached town A, how far was cyclist I from town B?

Class 8th NCERT - Mathematics Exemplar 12. Introduction to Graphs

Answer :

A) The horizontal axis (or the X axis) indicates the time. The vertical axis (or the Y axis) indicates the distance from the town A to B. The dotted line shows the journey of cyclist II.

∴ from the given graph, cyclist II rest at 8.45 AM to 9.00AM for 15 minutes

B) Cyclist II cycling faster after the rest because he covers the distance of 20km (from 10km to 30km) in 1hr (from 9 AM to 10 AM)

C) The two cyclists meet at 9.00AM shows in the graph

D) Cyclist II travelled from the town B to A, he travelled 20Km when he met cyclist I

E) In the given graph, the cyclist I was far from 10KM to town B when cyclist II reached town A

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PREVIOUSA man started his journey on his journey on his car from location A and came back. The given graph shows his position at different times during the whole journey.A) At what time did he start and end his journey?B) What was the total duration of journey?C) Which journey, forward or return, was of longer duration?D) For how many hours did he not move?E) At what time did he have the fastest speed?NEXTAjita starts off from home at 07.00 hours with her father on a scooter that goes at a uniform speed of 30km/h and drops her at her school after half an hour. She stays in the school till 13 30hours and takes an auto rickshaw to return home. The rickshaw has a uniform speed of 10km/h. Draw the graph for the above situation and also determine the distance of Ajita’s school from her house.

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