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15 men can complete a work in 210 days. They started the work but at the end of 10 days 15 additional men, with double efficiency, were inducted. How many days, in whole, did they take to finish the work?
(a) 72 1
2days (b) 84 3
4days
(d) 70 days(c) 76 2
3days
last reply by CpjJwWHV • 14 years ago • asked in MAT
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