Chapter 4 Class 8 Data Handling
Concept wise

Example 1 - Adjoining pie chart gives the expenditure (in percentage)

Example 1 - Chapter 5 Class 8 Data Handling - Part 2
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Example 1 Adjoining pie chart gives the expenditure (in percentage) on various items and savings of a family during a month. (i) On which item, the expenditure was maximum?In Pie Chart, Maximum percentage is 25% ∴ Maximum Expenditure is on food In Pie Chart, Maximum percentage is 25% ∴ Maximum Expenditure is on food Example 1 (iii) If the monthly savings of the family is Rs 3000, what is the monthly expenditure on clothes? Let the total expenditure amount = Rs 𝑥. Monthly Savings = 15% of Total Expenditure = 15/100×𝑥 Given, Monthly Savings = Rs 3000 15/100 × 𝑥 = 3000 3/20 × 𝑥 = 3000 3𝑥 = 3000 × 20 3𝑥 = 60000 𝑥 = 60000/3 𝑥 = 20000 ∴ Total Expenditure = Rs 20,000 Monthly Expenditure on clothes = 10% of Total Expenditure = 10/100× Total Expenditure = 10/100× 20,000 = 1/10× 20,000 = Rs 2000 ∴ Monthly Expenditure on Clothes = Rs 2000

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.