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Data was collected on a student’s typing rate and graph was drawn as shown below. Approximately how many words had this student typed in 30 seconds?

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Question

Data was collected on a student’s typing rate and graph was drawn as shown below. Approximately how many words had this student typed in 30 seconds?

Options

  • 20

  • 24

  • 28

  • 34

MCQ
Graph
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Solution

28

Explanation:

The time taken is denoted on x-axis and the number of words types are on y-axis. To calculate words types in 30 seconds. We look for the point on the line graph which corresponds 30 on the x-axis and from that point on the graph, draw perpendicular on the y-axis to find the number of words typed. The Answer comes out to be approximately 28 words in 30 seconds.

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Chapter 12: Introduct To Graphs - Exercise [Page 374]

APPEARS IN

NCERT Exemplar Mathematics [English] Class 8
Chapter 12 Introduct To Graphs
Exercise | Q 9. | Page 374

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