the difference between principal amount and simple interest is 100.the rate and time are 5% and 3 years respectively.calculate principal amount. Choose the correct answer: A) 118 B) 122.32 C) 126.36 D) 115.52 E) 117.64
let principal amount=x,simple interest=x-100.   x-100=x*5*3/100   100x-10000=15x   85x=10000   x=10000/85=117.64   answer 117.64
<result>E</result>
the difference between principal amount and simple interest is 100.the rate and time are 5% and 3 years respectively.calculate principal amount.