Question : If the simple interest on Re.1 for 1 month is 1 paisa, then the rate of interest per annum will be:

Option 1: 10%

Option 2: 8%

Option 3: 12%

Option 4: 6%

Question : The simple interest on a sum of money is $\frac{8}{25}$ of the sum. If the number of years is numerically half of the rate percent per annum, then the rate percent per annum is:

Option 1: $5$%

Option 2: $8$%

Option 3: $6\frac{1}{4}$%

Option 4: $4$%

Question : The simple interest on a sum for five years is two-fifths of the sum. The rate of interest per annum is:

Option 1: 1%

Option 2: 8%

Option 3: 6%

Option 4: 4%

Question : INR 2,500, when invested for 8 years at a given rate of simple interest per year, amounted to INR 3,725 on maturity. What was the rate of simple interest that was paid per annum?

Option 1: 6%

Option 2: 6.125%

Option 3: 6.25%

Option 4: 5.875%

Question : The simple interest on Rs. 800 for 6 years at 5.5% per annum is equal to the simple interest on Rs. 600 at 4% per annum for a certain period. The period is:

Option 1: 11 years

Option 2: 9 years

Option 3: 12 years

Option 4: 10 years

Question : In 5 years, the simple interest on an amount of Rs. $\mathrm{X}$ is $\frac{2}{5}$th of the principal. The rate of interest per annum is:

Option 1: 12%

Option 2: 8%

Option 3: 10%

Option 4: 5%