The average of daily wages for the workers of the two factories combined is
No.of wage earners Factory A 250 Factory B 200
Average daily wage Rs.2.00 Rs.2.50

2.22

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3.15

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4.10

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None of these

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Solution

The correct option is C $2.22$
Average wage $= \frac{x_{1} w_{1} + x_{2} w_{2}}{w_{1} + w_{2}}$
$= \frac{250 \times 2 + 200 \times 2.5}{250 + 200}$
$= \frac{1000}{450} = 2.22$

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No. of wage earners $250$ Average daily wage Rs. $2.00$	$200$ Rs. $2.50$

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Average daily wage of 50 workers of a factory was Rs. 200. Each worker is given a raise of Rs. 20. What is the new average daily wage?

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No.of wage earners	Factory A 250	Factory B 200
Average daily wage	Rs.2.00	Rs.2.50