I need to match the weight of 285. I can only use these numbers to match it. Which numbers can I combine to get 285?7kg9 kg25 kg100kg13 Kg

Answer:    100 + 100 + 25 + 25 + 13 + 13 + 9Step-by-step explanation:There are 334 ways to do it. The answer shown above is shortest sum. Perhaps the longest is 6×9 + 33×7, for a total of 6 + 33 = 39 numbers._____Given the above sum, certain replacements can be made:   13 + 13 + 9 = 7 + 7 + 7 + 7 + 7   25 = 9 + 9 + 7   25 + 25 = 13 + 9 + 7 + 7 + 7 + 7   25 + 25 + 25 = 13 + 13 + 13 + 9 + 9 + 9 + 9   100 = 25 + 25 + 25 + 25These can be iterated to whatever depth or combination may tickle your fancy.