a lemonade stand sold only small and large cups of lemonade on tuesday . 2 / 5 of the cups sold were small and the rest were large . if the large cups were sold for 7 / 6 as much as the small cups , what fraction of tuesday ' s total revenue was from the sale of large cups ?
"a simpler way i guess would be to think that in total 5 cups were sold . out of which 2 are small and 3 are large . now let the small ones cost $ 6 . so the large ones would cost $ 7 . so , 2 * 6 = 12 and 3 * 7 = 21 . total revenue was 12 + 21 = 33 and large cup sales as found above is 21 therefore answer is 21 / 33 i . e 7 / 11 b"
divide(multiply(subtract(const_10, multiply(divide(2, 5), const_10)), multiply(divide(7, 6), multiply(divide(2, 5), const_10))), add(multiply(multiply(divide(2, 5), const_10), multiply(divide(2, 5), const_10)), multiply(subtract(const_10, multiply(divide(2, 5), const_10)), multiply(divide(7, 6), multiply(divide(2, 5), const_10)))))