A certain amount earns simple interest of Rs. 1200 after 10 years. Had the interest been 2% more, how much more interest would it have earned?
Choose the correct answer:	A) Rs. 25	B) None of these	C) Rs. 120	D) Rs. 100	E) Cannot be determined
Explanation :   Since we do not have the principal and rate of interest, we can not find out the required details.   Answer : Option Rs. 100
<result>D</result>
A certain amount earns simple interest of Rs. 1200 after 10 years. Had the interest been 2% more, how much more interest would it have earned?