The price of a certain product increased by the same percent from 1960 to 1970 as from 1970 to 1980. If its price of $2.00 in 1970 was 150 percent of its price in 1960, what was its price in 1980?  Choose the most appropriate option
A) a) $ 1.80
B) b) $ 2.00
C) c) $ 2.40
D) d) $ 2.70
E) e) $ 3.00
The price in 1970 was 150 percent of its price in 1960, means that the percent increase was 50% from 1960 to 1970 (and from 1970 to 1980).   Therefore the price in 1980 = $2.0*1.5 = $3.00.   Answer: e) $ 3.00.
<result>E</result>
The price of a certain product increased by the same percent from 1960 to 1970 as from 1970 to 1980. If its price of $2.00 in 1970 was 150 percent of its price in 1960, what was its price in 1980?