8th Class Mathematics Introduction to Graphs

  • question_answer 6)                 A courier-person cycles from a town to a neighboring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph. (a) What is the scale taken for the time axis? (b) How much time did the person take for the travel? (c) How far is the place of the merchant from the town? (d) Did the person stop on his way? Explain. (e) During which period did he ride fastest?  

    Answer:

                    (a) The scale taken for the time axis is 4 units = 1 hour. (b) The time taken by the person for the travel 8 a.m. to 11.30 a.m. \[=3{\scriptstyle{}^{1}/{}_{2}}\] hours. (c) The place of the merchant from the town in 22 km. (d) Yes. This is indicated by the horizontal part of the graph (10 a.m. ? 10.30 a.m.) (e) He rides fastest between 8 a.m. and 9 a.m.


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