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, ₹ 54 and per day mean wage of all the workers is ₹ 60 , then per day mean wage of the night shift workers (in ₹ ) is :

Question

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, ₹ 54 and per day mean wage of all the workers is ₹ 60 , then per day mean wage of the night shift workers (in ₹ ) is :, 75, 74, 69, 66

MARKS App · Accepted Answer

n 1 x ¯ 1 + n 2 x ¯ 2 n 1 + n 2 = x ¯ 70 ⋅ 54 + 30 x ¯ 2 70 + 30 = 60 ⇒ 3780 + 30 x ¯ 2 = 6000 ∴ x ¯ 2 = 6000 - 3780 30 = 2220 30 = 74

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