A contract is to be completed in 50 days and 105 men were set to work, each working 8 hours a day. After 25 days, 2/5th of the work is finished, how many additional men be employed so that the work may be completed on time, each man now working 9 hours a day
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days. men. hrs complete
25. 105. 8. 2/5
25. X. 9. 3/5
x totalmen
x=25/25x8/9x3/5x2/5x105
=140
Add I men=140-105=35 men
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