The price of a certain product increased by the same percent from 1960 to 1970 as from 1970 to 1980. If its price of $1.60 in 1970 was 150 percent of its price in 1960, what was its price in 1980?	Choose the correct 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 = $1.6*1.5 = $2.4.   Answer: c) $ 2.40.
<result>C</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 $1.60 in 1970 was 150 percent of its price in 1960, what was its price in 1980?