Question

the work done by a woman in 6 has is equal to the work done by a man info has and by a boy in 12 has a task which normally takes 15 women's working 6 hours a day 10 days to complete is given to 6 men and 9 boys working for has a day on which day will the task be completed​

Answer 1

Answer:

Ratio of time taken by a woman, a man and a boy

=8:6:12=4:3:6

So, 4 women ≡ 3 men ≡ 6 boy

(12 mens + 12 womens + 12 boys)

=[12+(34×12)+(36×12)]men = (12+9+6)men=27 men

Let the required number of days be x

More men, Less days (Indirect proportion)

More working hours, Less days (Indirect proportion)

Working hours 8:6Men 27:9}::6:x

∴27×8×x=9×6×6⇔x=(9×6×6)(27×8)⇔x=32⇔x=112