Money invested at x%, compounded annually, triples in value in approximately every 112/x years. If $2500 is invested at a rate of 8%, compounded annually, what will be its approximate worth in 28 years?  Choose the correct choice from the following answers:	A) $3,750	B) $5,600	C) $8,100	D) $15,000	E) $22,500
Solution: money compounded annually at x% triples in 112/x years.   we need to find the final amount of 2500 at the end of the 28 years.. compounded annually at 8%   by putting the value in formula it will give us = 2500(1.08)^28   there must be a relation between these two conditions?   x= 8% so money will triple in   112/8= 
<gadget id="calculator">  112/8</gadget>
<output>14</output>
14 years   so money will be 3^2= 9 times in 28 years   so 2500*9= 
<gadget id="calculator">2500*9</gadget>
<output>22_500</output>
22500   Answer:$22,500
<result>E</result>
Money invested at x%, compounded annually, triples in value in approximately every 112/x years. If $2500 is invested at a rate of 8%, compounded annually, what will be its approximate worth in 28 years?