Answer:
315
Explanation:
Given,
Mean wage (X) of 100 workers is Rs 324, this combine mean
Mean wage (X1) of 60 workers is Rs 340
And the number (N1) is 60, (N2) is 40
Find X2 , not given
Combined Mean = N1 × X1 + N2 × X2 / N1 + N2
Rs 324 = 60 × Rs340 + 40 × X2 / 60 + 40
Rs 324 = Rs20,400 + 40 X2 / 100
Rs324 × 100 = Rs20,400 + 40X2
Rs32,400 - Rs20,400 = 40X2
Rs 12,000 = 40 X2
X2 = Rs12,000 / 40
X2 = 300
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Answers & Comments
Answer:
315
Explanation:
The mean wage of remaining workers is Rs 300
Explanation:
Given,
Mean wage (X) of 100 workers is Rs 324, this combine mean
Mean wage (X1) of 60 workers is Rs 340
And the number (N1) is 60, (N2) is 40
Find X2 , not given
Combined Mean = N1 × X1 + N2 × X2 / N1 + N2
Rs 324 = 60 × Rs340 + 40 × X2 / 60 + 40
Rs 324 = Rs20,400 + 40 X2 / 100
Rs324 × 100 = Rs20,400 + 40X2
Rs32,400 - Rs20,400 = 40X2
Rs 12,000 = 40 X2
X2 = Rs12,000 / 40
X2 = 300