A sum of money at simple interest amounts to $ 980 in 3 years and to $1024 in 4 years. The sum is:  Answers:
A) $153	B) $848	C) $398	D) $549	E) $675
B   $848   S.I. for 1 year = $(1024 - 980)= 
<gadget id="calculator">(1024 - 980)</gadget>
<output>44</output>
$44.   S.I. for 3 years= $(44 x 3) = $132.   Principal = $(980 - 132)= 
<gadget id="calculator">(980 - 132)</gadget>
<output>848</output>
$848.
<result>B</result>
A sum of money at simple interest amounts to $ 980 in 3 years and to $1024 in 4 years. The sum is: