Question : If the simple interest at the same rate of interest on INR 500 for 4 years and INR 700 for 2 years combined, is INR 280, then what is the rate of interest?

Option 1: $9 \frac{3}{17}\%$

Option 2: $6 \frac{5}{17}\%$

Option 3: $8 \frac{4}{17}\%$

Option 4: $7 \frac{3}{17}\%$

Question : At simple interest, a sum of INR 6,400 becomes INR 8,320 in 3 years. What will INR 7,200 become in 5 years at the same rate?

Option 1: INR 10,200

Option 2: INR 10,600

Option 3: INR 10,800

Option 4: INR 10,400

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 : 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 : At what rate of interest will a sum of INR 4,500 amount to INR 6,525 at simple interest for 5 years?

Option 1: 10%

Option 2: 9%

Option 3: 8%

Option 4: 12%