If $120 invested at a certain rate of simple interest amounts to $160 at the end of 3 years,How much will $150 amount to at the same rate of interest in 6 years?	Select
A) $190 B) $180 C) $200 D) $240 E) $250
120 amounts to 160 in 3 years.   i.e (principal + interest ) on 120 in 3 years = 160   120 + 120*(r/100)*(3) = 160 =&gt; r = 100/9   150 in 6 years = principal + interest   = 150 + 150*(r/100)*(6)   250   Answer is $250.
<result>E</result>
If $120 invested at a certain rate of simple interest amounts to $160 at the end of 3 years,How much will $150 amount to at the same rate of interest in 6 years?