1.

One man, 3 women and 4 boys can do a piece of work in 96 hours, 2 men and 8 boys can do it in 80 hours, 2 men and 3 women can do it in 120 hours. 5 men and 12 boys can do it in1). $39\frac{1}{11}$ hours2). $42\frac{7}{11}$ hours3). $43\frac{7}{11}$ hours4). 44 hours

Answer»

$43\frac{7}{11}$ hours : - is correct HENCE OPTION 3



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