Total number of workers are 25 . Out of them the average monthly salary of 15 workers is 8500 whereas the other 10 workers have an average monthly salary of 9800. Find the monthly salary of all 25 workers
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total number of worker total number of worker=25
average monthly salary of 15 workers=8500
total salary=15×8500=127500
next average monthly salary of 10 workers=9800
total salary=10×9800=98000
now average monthly salary of 15 workers=127500+98000/25
=225500/25=9020
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