In a factory, 20 workers earn an average daily wage of ₹450, 30 workers earn ₹500 and 50 workers earn ₹560. What is the average daily wage of all the workers?
Competition practiceStatistics
A₹520
B₹503.33
C₹515
D₹530
Step-by-Step Solution
Total wages =20(450)+30(500)+50(560)=9000+15000+28000=52000; average =52000÷100=₹520.
Answer: A) ₹520
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