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Sundar earns by conducting coaching classes. 10% of his income goes into varied costs involved in running his classes. Below is the table showing his 5-year income (in lakh) Year Sundar’s Yearly Income in (lakh) Rs. 2012 2.5 2013 3 2014 3 2015 2.5 2016 4 On an average, how much does Sundar spend in a year as varied cost in maintaining his classes?

Sundar earns by conducting coaching classes. 10% of his income goes into varied costs involved in running his classes. Below is the table showing his 5-year income (in lakh) Year Sundar’s Yearly Income in (lakh) Rs. 2012 2.5 2013 3 2014 3 2015 2.5 2016 4 On an average, how much does Sundar spend in a year as varied cost in maintaining his classes? Correct Answer Rs. 30,000

Given:

Earning of 2012 = 2,50,000

Earning of 2013 = 3,00,000

Earning of 2014 = 3,00,000

Earning of 2015 = 2,50,000

Earning of 2016 = 4,00,000

Calculation:

Varied cost of 2012 = 10% of 2,50,000 = 25000

Varied cost of 2013 = 10% of 3,00,000 = 30000

Varied cost of 2014 = 10% of 3,00,000 = 30000

Varied cost of 2015 = 10% of 2,50,000 = 25000

Varied cost of 2016 = 10% of 4,00,000 = 40000

 Total varied cost of all five years = (25000 + 30000 + 30000 + 25000 + 40000) = 1,50,000

∴ Average varied cost of five years = 150000/5 = 30000

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