In how many years Rs 200 will produce the same interest at 10% as Rs. 400 produce in 5 years at 12%	Pick one:  A) 16  B) 13  C) 12  D) 14  E) 15
Explanation:   Clue:   Firstly we need to calculate the SI with prinical 400,Time 5 years and Rate 12%, it will be Rs. 240   Then we can get the Time as   Time = (100*240)/(200*10)= 
<gadget id="calculator">(100*240)/(200*10)</gadget>
<output>12</output>
12   Option 12
<result>C</result>
In how many years Rs 200 will produce the same interest at 10% as Rs. 400 produce in 5 years at 12%