Brain tunner
Level
pending
150 workers were engaged to finish a piece of work in a certain number of days. four workers dropped the second day, four more worker dropped the third day and so on. It takes 8 more days to finish the work now. find the number of days in which the work was completed.
The answer is 25.
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1 solution
case I work done by 150 people in 'x' days is 150x
case II when 4 workers are being dropped each day the 150x amount of work would take 8 more days Therefore,
150x = {(x+8)/2 } [(2 150)+{(x+8-1)(-4)}]
solving for x will give x=17 17+8 = 25