Sonika deposited Rs.13000 which amounted to Rs.10200 after 4 years at simple interest. Had the interest been 5% more. She would get how much? Choose the correct choice from the following answers: A) 18990 B) 13002 C) 12800 D) 12300 E) 14500
(13000*4*5)/100= 
<gadget id="calculator">(13000*4*5)/100</gadget>
<output>2_600</output>
2600   10200   --------   12800   Answer: 12800
<result>C</result>
Sonika deposited Rs.13000 which amounted to Rs.10200 after 4 years at simple interest. Had the interest been 5% more. She would get how much?