If a quantity is successively increased by 20% for two times and another quantity is successively decreased by 10% for three times, the first quantity is 80% of the second. What percentage is the original first quantity as compared to the original second quantity?
Average--Average---Average
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algebra-precalculus
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2Why do you want to know? What have you tried? – 2010-10-15
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0Well,I derived the answer as `73%` with rather a brute force approach and not probably helpful during exam. – 2010-10-15
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0@Tretwick: That is the result you got, not the idea you used. How did you arrive at that result? – 2010-10-15