Question

in a factory, 4 workers can manufacture 80 chairs in 12 days.how long will 24 workers can manufacture 80 chairs in 12 days . how long will 24 workwes take to manufacture 300 chairs?

Answer 1

Answer:

4 men, 12 days = 4x12 = 48 'mandays', so 80/48 = 5/3 chairs per manday

so 300 chairs: 300/(5/3) = 180 mandays

24 men, so: 180/24 = 7.5 days

Answer 2

Answer:

Step-by-step explanation:

1.  Divide 80 by 4 which gives you 20.  That tells you that one man can make 20 chairs in 12 days.

2.  That also means one man can make 10 chairs in 6 days, or 5 chairs in 3 days, or 1 chair in 1.67 days.

3.  300 chairs divided by 1.67 chairs/day (per man) = 179.64 days for one man

4.  179.64 days for one man divided by 24 men = 7.49 days for 24 men to make 300 chairs.