The simple interest on a sum of money will be rupees 210 after 3 years. In the next 3 years.principal becomes 4 times.then the total interest at the end of 6 years.

The simple interest on a sum of money will be Rs. 600 after 10 years. If the principal is trebled after 5 years, what will be the total interest at the end of the tenth year?

The simple interest on a sum of money will be Rs 600 after 10 years.If the principal is trebled after 5 years,what will be the total interest at the end of the tenth year? (a) Rs 600 (b) Rs 900 (c) Rs 1200 (d) Rs 1500 (e) Data inadequate

.A sum of money becomes 3 times in 12 years.In how many years will it become 5 times at the same rate of simple interest?

If a sum of money becomes 3 times in 12 years then in how many years it will become 5 times at the same rate of simple interest?

The simple interest on a certain sum of money is 3/8 of the sum in 6""1/4 years. Find the rate percent charged.