Multiple choice In how many years the sum of money at 10% simple interest, will be more by 60%? 5 years 7 years 4 years 8 years 6 years Reveal answer Fill a bubble to check yourself E Correct answer Explanation (If the principal be Rs.100, S. I. is Rs.60 & rate is 10%Therefore, time = I X 100 = 60 X 100 = 6 years) P X R 100 X 10