Hi didieravoaka,
We're told that every quarter-century (meaning every 25 years), the price of a bushel is X TIMES (meaning multiplication) more expensive. From 1775 to 2000, we have nine 25-year 'periods' in which the bushel becomes X TIMES more expensive with each period, so we're clearly talking about a LOT of multiplication. However, the price in 1775 is $3 and the price in 2000 is only $9, so all of that multiplication leads to a total product that is only 3 times more expensive over the course of 9 periods. There's only one answer that has a 3 AND accounts for 9 'periods'...
Final Answer: E
GMAT assassins aren't born, they're made,
Rich
