A factory is operating in two shifts, day and night, with $70$ and $30$ workers respectively. If per day mean wage of the day shift workers is Rs. $54$ and per day mean wage of all the worker is Rs. $60$ , then per day mean wage of the night shift workers (in Rs.) is

75

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69

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66

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74

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Solution

The correct option is D $74$
Workers in day shift= $70$
Workers in night shift= $30$
Mean wage of the day shift workers is Rs. $54$ .
Let mean wage of the night shift workers is Rs. $x$ .
Then,
$\frac{70 \times 54 + 30 \times x}{70 + 30} = 60 \Rightarrow x = 74$

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A factory is operating in two shifts, day and night, with 70 and 30 workers respectively. If per day mean wage of the day shift workers is Rs. 54 and per day mean wage of all the worker is Rs. 60, then per day mean wage of the night shift workers (in Rs.) is

The correct option is D 74Workers in day shift=70 Workers in night shift=30 Mean wage of the day shift workers is Rs. 54. Let mean wage of the night shift workers is Rs. x. Then, 70×54+30×x70+30=60⇒x=74

A factory is operating in two shifts, day and night, with $70$ and $30$ workers respectively. If per day mean wage of the day shift workers is Rs. $54$ and per day mean wage of all the worker is Rs. $60$ , then per day mean wage of the night shift workers (in Rs.) is

The correct option is D $74$
Workers in day shift= $70$
Workers in night shift= $30$
Mean wage of the day shift workers is Rs. $54$ .
Let mean wage of the night shift workers is Rs. $x$ .
Then,
$\frac{70 \times 54 + 30 \times x}{70 + 30} = 60 \Rightarrow x = 74$