Question 655292
Houses or classrooms? I'll say they're both classrooms.
2 students can paint 6 classrooms in 3 days
2 students can paint 1 classroom in 3/6 or 1/2 day
2 students can paint 10 classrooms in {{{ 10*(1/2) = 5 }}} days
{{{ 5*2 = 10 }}} students can paint 10 classrooms in {{{ 5/5 = 1 }}} day
{{{ 10/2 = 5 }}} students can paint 10 classrooms in 2 days
Hope I got it