Question
Average monthly income of 35 workers is ₹52,000. Two
new workers earning (r + 8000) and (r - 2000) join, and the average rises to ₹53,000. Find (r - 25,000).Solution
37 × 53,000 − 35 × 52,000 = r + 8000 + r − 2000
2r + 6000 = 1,961,000 − 1,820,000 = 141,000
2r = 135,000
r = 67,500
r − 25,000 = 42,500
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