Question : In what time will INR 10,000 at 4% per annum, produce the same interest as INR 8,000 does in 4 years at 5% Simple Interest?

Option 1: 5 years

Option 2: 3 years

Option 3: 4 years

Option 4: 6 years

Question : In how many years will a sum of Rs. 3000 yield an interest of Rs.1080 at 12% per annum simple interest?

Option 1: $4$ years

Option 2: $3$ years

Option 3: $5$ years

Option 4: $2\frac{1}{2}$ years

Question : The rate of simple interest for which INR 9,000 will amount to INR 10,200 in 4 years is:

Option 1: $4\frac{2}{3}\%$

Option 2: $7\frac{1}{3}\%$

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

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

Question : The interest earned on INR 21,000 in 3 years at Simple Interest is INR 6,400. What is the rate of interest per annum?

Option 1: $10\frac{5}{63} \%$

Option 2: $10\frac{2}{63} \%$

Option 3: $10\frac{13}{63} \%$

Option 4: $10\frac{10}{63} \%$

Question : A man invests a total sum of INR 10,000 in a company. A part of the sum was invested at 10% simple interest per annum and the remaining part, at 15% simple interest per annum. If the total interest accrued in two years equals INR 2,400, the sum invested at 15% simple interest per annum is:

Option 1: INR 8000

Option 2: INR 4000

Option 3: INR 6000

Option 4: INR 5000