1. Chapter 3 Class 7 Data Handling
  2. Serial order wise
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Example 1 Ashish studies for 4 hours, 5 hours and 3 hours respectively on three consecutive days. How many hours does he study daily on an average? Average hours studied per day = (๐‘†๐‘ข๐‘š ๐‘œ๐‘“ โ„Ž๐‘œ๐‘ข๐‘Ÿ๐‘  ๐‘ ๐‘ก๐‘ข๐‘‘๐‘–๐‘’๐‘‘)/(๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘‘๐‘Ž๐‘ฆ๐‘ ) = (4 + 5 + 3)/3 = 12/3 = 4 hours per day โˆด Average hours studied is 4 hours per day

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.