- Thu Apr 16, 2020 11:30 am
I find that the simplest way to wrap my head around these sort of numbers and percentages questions is to supply numbers, and for me the easiest number to supply when dealing with a percentage increase or decrease is 100. So let's imagine the Cheetah was priced at $100 back in December, before all these price changes began.
In January, the price went up 25%, so the new price was $125. In February they put the car on sale and reduced THAT price by 20%. A 20% reduction from $125 brings the price down to...$100, right where we were back in December! Choice III is proven correct just by that simple math! (125 x .8 = 100)
You have to remember when combining percentages like that to go through it step by step. You cannot just take 20 away from 25 and come up with a 5% increase, because the second percentage is based on a different number than the first percentage.
Adam M. Tyson
PowerScore LSAT, GRE, ACT and SAT Instructor
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