1.

16 men can finish a piece of work in 49 days. 14men started working and in 8 days they could finish certain amount of work.If it is required to finish the remaining work in 24 days. How many more menshould be added to the existing workforce?`21`b. `28`c. `16`d. `14`

Answer» one mans one day work =` 1/(16) xx 1/(49)`
.Now 14 men started working for 8 days,amount of work done=` 1/(16) xx 1/(49) xx 14 xx 8=1/7`
amount of work left=`6/7`
1 man will do amount of work in 24 days=` 1/(16) xx 1/(49) xx 24`
Number of men required=`6/7 -: (1/(16) xx 1/(49) xx 24)=28 men.
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