4 male and 6 female can cultivate a field in 8 days, 7 male and 3 female can cultivate a field in 10 days. then how many days will take to cultivate a field if 10 female works? Choose the correct option.
A) 120/19	B) 130/19	C) 140/19	D) 120/18	E) 120/17
4 male+6female in 8 days=&gt; 32 male+48 female in 1day   7male+ 3 female in 10 days =&gt;70 male+30 female in 1 day   .:32 male+48 female=70 male+30 female   18 female=38 male   1 female= 38/18 male=19/9 male   now,4 male+6 female=4 male+6*(19/9)=50/3 male=150/9 male   we have to find for 10 female workers= 10*(19/9)=190/9 male   more men ,fewer days wud be req to finish work   male days   150/9 8   190/9 x   so, x/8=(150/9)/(190/9)   x=120/19   120/19NSWER:120/19
<result>A</result>
4 male and 6 female can cultivate a field in 8 days, 7 male and 3 female can cultivate a field in 10 days. then how many days will take to cultivate a field if 10 female works?