Question

If the average of monthly salary of 20 employees in a company is rs.7650 .If the managers salary is added the average salary increases by rs.550 per month. What is the managers monthly salary

Answer 1

$Average \: monthly \: salary \: of \:20 \\</p><p>employees \:in\:a \: company = Rs \:7650$

$Sum \: of \: 20 \: employees \: salaries \\= 20 \times 7650 \\= Rs \:153000 \:--(1)$

$Let \: monthly \:salary \:of \: manager = Rs\:x$

$Now, New \: average = Old \:mean + Rs \:550$

$\implies \frac{Sum\: of \:20 \: employees \: salary + manager \: salary }{Total \: employees }=Rs \: 8200$

$\implies \frac{153000 + x }{ 21 } = 8200$

$\implies 153000 + x = 21 \times 8200$

$\implies x = 172200 - 153000$

$\implies x = Rs \: 19200$

Therefore.,

$\red { Monthly \:salary \:of \:Manager } \green { = Rs \:19200 }$

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Answer 2

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