in a factory , an average of 65 tv ' s are produced per day for the fist 25 days of the months . a few workers fell ill for the next 5 days reducing the daily avg for the month to 60 sets / day . the average production per day for day last 5 days is ?
"production during these 5 days = total production in a month - production in first 25 days . = 30 x 60 - 25 x 65 = 175 ∴ average for last 5 days = 175 / 5 = 35 aswer : b"
divide(subtract(multiply(add(25, 5), 60), multiply(25, 65)), 5)