JEE Mains · Maths · STD 11 - 13. statistics
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 workers is \(Rs. 60,\) then per day mean wage of the night shift workers(in \(Rs. \) )is
- A \(69\)
- B \(66\)
- C \(74\)
- D \(75\)
Answer & Solution
Correct Answer
(C) \(74\)
Step-by-step Solution
Detailed explanation
Let average wage of Night shift worker is \(x\) \(70 \times 54 + 30 \times x = 60 \times100\) \(x =74\)
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