How much time will it take for an amount of 500 to yield 100 as interest at 5% per annum of simple interest? Pick:
A) 3 year	B) 4 year	C) 6 year	D) 5 year	E) 7 year
Time = (100 x 100)/(500 x 5) years = 4 years.   answer 4 year
<result>B</result>
How much time will it take for an amount of 500 to yield 100 as interest at 5% per annum of simple interest?