If 3 men or 4 women can plough a field in 43 days, how long will 7 men and 5 women take to plough it?
If 3 men or 4 women can plough a field in 43 days, how long will 7 men and 5 women take to plough it? Correct Answer 12 days
3 men or 4 women can plough the field in 43 days3 men = 4 women1 man = $$\frac{4}{3}$$ women7 man = $$\frac{{28}}{3}$$ women7 men and 5 women = $$5 + \frac{{28}}{3}$$ = $$\frac{{43}}{3}$$ women4 women can plough field in 43 daysSo, 1 women can plough in = 43 × 4 daysHence,$$\frac{{43}}{3}$$ women can plough = $$\frac{{43 \times 4 \times 3}}{{43}}$$ = 12 days