Quote:
Originally Posted by Adil Ashfaq
1 Man = 2 Boys
Total Boy-days required to complete the task = 6 boys x 20 days = 120 Boy-days
120 days are required by one boy to complete the task.
Now come to the 'then' part.
because
6 men = 12 boys
therefore,
6 men + 8 boys = 12 boys + 8 boys = 20 boys
Now days required to complete the task = 120 boy-days /20 boys = 6 days
120 days are required by one boy to complete the task so the days required by 20 boys will be 120/20 = 6 days.
You can also solve by pursuing with the men instead of boys, i.e. 1 man = 2 boys.
|
How come we can assume 6 men are equal to 12 boys ? And the question says that 6 men and 8 boys shall take how many days and it's not asking just about boys. It's asking about men as well i.e., I mean 6 mean and 8 boys in the last part of the question.