Question

A man, a women and a boy can complete a job in 3 4 and 12 days respectively. How many boys must assist 1 man and 1 woman to complete the job in 1/4 of the day ? ​

Answer 1

Step-by-step explanation:

1 man's 1 days work =

3

1

1 woman's 1 days' work =

4

1

1 boy's 1 days' work =

12

1

Let the number of boys to assist be x Then

3

1

+

4

1

+

12

x

=

1/4

1

⇒

12

4+3+x

=4⇒7+x=48⇒x=41 boys

Answer 2

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