Asked by Kylie
One window washer can wash 30 windows in 2 hours. At this rate, how many windows can be washed in 8 hours by 3 window washers?
Answers
Answered by
Reiny
1 washer ---- 30 windows ----- 2 hours
3 washers ---- 90 windows ---- 2 hours **
<b>3 washers ----360 windows ---- 8 hours</b> ***
** , used only this part
1 washer ---- 30 windows
3 washers ---- 90 windows
***, used only this part
90 windows ---- 2 hours
360 windows ---- 8 hours
3 washers ---- 90 windows ---- 2 hours **
<b>3 washers ----360 windows ---- 8 hours</b> ***
** , used only this part
1 washer ---- 30 windows
3 washers ---- 90 windows
***, used only this part
90 windows ---- 2 hours
360 windows ---- 8 hours
Answered by
anonymous
isnt it 720 windows
Answered by
Reiny
no
in the last part, the time quadrupled, so the number of window would also quadruple.
2 hrs times 4 = 8 hrs
90 windows times 4 = 360 windows
how did you get 720 ?
in the last part, the time quadrupled, so the number of window would also quadruple.
2 hrs times 4 = 8 hrs
90 windows times 4 = 360 windows
how did you get 720 ?