Question 1183907: if 20 men can build a wall in 5 days how many men will be required to build the same wall in two days Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website! the formula to use is p * r * t = q
p = the number of people
r = the average rate of each of the 20 people
t = time
q = quantity.
when p = 20 and t = 5 days and q = 1 wall, the formula becomes:
20 * r * 5 = 1
solve for r to get:
r = 1/(20*5) = 1/100 = .01
the average person can build the wall at a rate of 1/100 of the wall in one day.
in order to build the wall in 2 days, the formula becomes:
p * .01 * 2 = 1
solve for p to get:
p - 1/(.01*2) = 50
the equation becomes:
50 * .01 * 2 = 1 which becomes 1 = 1, confirming that 50 people can complete the job in 2 days if each person completes an average of .01 * the job in 1 day.
