Question

12 men do one piece work in 21 days. same work in 1 day how many men will be needed

Answer 1

Answer:

42 men

Step-by-step explanation:

1 day = 24hours

21÷12

1.75

1.75 × 24 hour

42

so 42 men will be needed to complete the work..

Answer 2

Answer:

12 men = 21 days

1 man = 252 days

1 man in 1 day = 1/252 of the work

6 men = 6/252 = 1/42 of the work

15 women = 21 days

1 woman = 315 days

1 woman in 1 day =1/315 of the work

10 women in 1 day = 10/315 = 2/63 of the work

so 6men + 10 women in 1 day = 1/42 +2/63 = 7/126= 1/18

ANSWER 18 days

Step-by-step explanation:

that is the answer army

hope you have a nice day