Question 870472
(# of dishes)/(# of minutes) = (# of dishes)/(# of minutes)



(10 dishes)/(4 minutes) = (25 dishes)/(x minutes)



(10)/(4) = (25)/(x)



10/4 = 25/x



10x = 4*25 ... cross multiply



10x = 100



x = 100/10



x = 10



It will take him <font color="red">10 minutes</font> to wash 25 dishes.