A factory employs 40 workers who earn an average of ₹600 a day and 10 supervisors who earn an average of ₹1,100 a day. What is the average daily earning of all 50 employees?

₹700Correct answerYour answer₹750Correct answerYour answer₹850Correct answerYour answer₹1,000Correct answerYour answer

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CorrectNot quiteAnswer A

Correct answer: A

Total wages = $40 \times 600 + 10 \times 1{,}100 = 24{,}000 + 11{,}000$ = ₹35,000.
Average = ₹ $\frac{35000}{50}$ = ₹700.

Worth noting

₹850 is the plain average of 600 and 1,100; ₹1,000 gives the 40 people the supervisors' wage.

Ten questions from Averages, at your own pace.

Explanation