4 men and 6 woman can do work in 8 days and 3 men and 7 woman can do work in 10 days how many days take to work 25 woman
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let men will be x
and women will be y
4x+6y=8. (I)
3x+7y=10. (ii)
by multiplyin equation (i) by 3
and equation (ii) by 4
12x+18y=24
12x+28y=40
- - -
-10y=-16
y=16/10 y=8/5
y=8/5×25
y=40 days
and women will be y
4x+6y=8. (I)
3x+7y=10. (ii)
by multiplyin equation (i) by 3
and equation (ii) by 4
12x+18y=24
12x+28y=40
- - -
-10y=-16
y=16/10 y=8/5
y=8/5×25
y=40 days
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