a lemonade stand sold only small and large cups of lemonade on tuesday . 3 / 5 of the cups sold were small and the rest were large . if the large cups were sold for 1 / 6 as much as the small cups , what fraction of tuesday ' s total revenue was from the sale of large cups ?
"let the total # of cups be 10 . # of small cups sold 3 / 5 * 10 = 6 ; # of large cups sold 10 - 6 = 4 ; let the price of small cup be $ 6 , then the price of larges cup would be 1 / 6 * 6 = $ 1 ; revenue from small cups : 6 * $ 6 = $ 36 ; revenue from large cups cups : 4 * $ 1 = $ 4 ; fraction of total revenue from large cups : 4 / ( 36 + 4 ) = 1 / 10 . answer : e ."
divide(multiply(subtract(const_10, multiply(divide(3, 5), const_10)), multiply(divide(1, 6), multiply(divide(3, 5), const_10))), add(multiply(multiply(divide(3, 5), const_10), multiply(divide(3, 5), const_10)), multiply(subtract(const_10, multiply(divide(3, 5), const_10)), multiply(divide(1, 6), multiply(divide(3, 5), const_10)))))