the price of an item is discounted 10 percent on day 1 of a sale . on day 2 , the item is discounted another 10 percent , and on day 3 , it is discounted an additional 30 percent . the price of the item on day 3 is what percentage of the sale price on day 1 ?
"let initial price be 1000 price in day 1 after 10 % discount = 900 price in day 2 after 10 % discount = 810 price in day 3 after 30 % discount = 567 so , price in day 3 as percentage of the sale price on day 1 will be = 567 / 900 * 100 = > 63 % answer will definitely be ( b )"
add(multiply(divide(divide(30, const_100), subtract(1, divide(1, 10))), const_100), 2)