Question 1157255

6men can weed the farm for 16days.After working for 4 days 2 more men were added. For how long did they weed the farm? 
<pre>After the 6 men worked for 4 days, {{{1/4}}} of work was completed, so {{{3/4}}} of work remained undone
With 2 more men or 8 men completing the {{{3/4}}} remaining work, and with T being the time the 8 worked, we get: {{{matrix(4,3, M, "=", k(j)/T,
8, "=", 96(3/4)/T,
8, "=", 72/T,
8T, "=", 72)}}}
Time for 8 men to do remaining {{{3/4}}} of work, or {{{highlight_green(matrix(1,6, T, "=", 72/8, "=", 9, days))}}}
Time it took to weed farm: {{{highlight_green(matrix(1,4, 4 + 9, "=", 13, days))}}}
ACCEPT NO other answer!!