Question : When will INR 3,720 amount to INR 5,282.4 at 12% simple interest per annum?

Option 1: $3$ years

Option 2: $3 \frac{1}{2}$ years

Option 3: $5 \frac{1}{2}$ years

Option 4: $5$ years

Question : A sum of money invested at compound interest amounts to Rs. 800 in 3 years and to Rs. 840 in 4 years. The rate of interest per annum is:

Option 1: $2\frac{1}{2}$%

Option 2: $4$%

Option 3: $5$%

Option 4: $6\frac{2}{3}$%

Question : If a sum of money becomes Rs. 4000 in 2 years and Rs. 5500 in 4 years and 6 months, at the same rate of simple interest per annum, the rate of simple interest is:

Option 1: $21\frac{3}{7}$%

Option 2: $21\frac{2}{7}$%

Option 3: $21\frac{1}{7}$%

Option 4: $21\frac{5}{7}$%

Question : The sum of money that will yield Rs. 60 as simple interest at a rate of 6% per annum in 5 years is:

Option 1: Rs. 200

Option 2: Rs. 225

Option 3: Rs. 175

Option 4: Rs. 300

Question : For what sum will the simple interest at $R$% per annum for 2 years be $R$?

Option 1: Rs. $\frac{100}{2R}$

Option 2: Rs. $50$

Option 3: Rs. $\frac{100}{R}$

Option 4: Rs.$\frac{200}{R}$