<PRE><B>Question 604667</B>
4 people can paint 3 walls in 46 minutes.
:
Find the number or man-minutes per wall
{{{(4*46)/3}}} = 61{{{1/3}}} man-min per wall
:
How many minutes will it take for 9 people to paint 6 walls?
let m = no. of minutes for 9 men to do this
9m = 6(61{{{1/3}}})
9m = 368
m = 368/9
m = 41 minutes for 9 men to paint 6 walls




</PRE>