Question 657895
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
16 men to build a wall 80 metres long in 10days &#8658; 8m/day 0r 64m in 8days
80-64 = 16, 16+10 = 26m must be built in 2 days. 
@man can build 1/2m per day or 1m in 2 days.
Would take 26 men working 2 days for the 26m needed. 
{{{10}}} more men must be engaged to complete the work within the agreed time