an auction house charges a commission of 25 % on the first $ 50,000 of the sale price of an item , plus 10 % on the amount of of the sale price in excess of $ 50,000 . what was the price of a painting for which the house charged a total commission of $ 24,000 ?
"say the price of the house was $ x , then 0.25 * 50,000 + 0.1 * ( x - 50,000 ) = 24,000 - - > x = $ 165,000 ( 25 % of $ 50,000 plus 10 % of the amount in excess of $ 50,000 , which is x - 50,000 , should equal to total commission of $ 24,000 ) . answer : b ."
add(multiply(25, 10), 10)