Puzzle of the Day
One home improvement saves 30% on fuel, a second saves 45% and a third 25%. If you use all three can you save 100%. If not why not?
Answer: If you save 30% you pay 70% of original. If you now save 45% of this you pay 55% of 70% of original, if you now save 25% you pay 25% of 55% of 70% of original. This under 30% of original