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 : Rajnish borrowed INR 1,500 from a bank and repaid the entire amount with interest in two equal annual instalments, the first instalment being paid a year after Rajnish borrowed from the bank. If the rate of interest was 40% per annum, compounded annually, then what was the value (in INR) of each instalment paid by Rajnish?

Option 1: 1125

Option 2: 1470

Option 3: 1225

Option 4: 1350

Question : A sum of Rs.10 is lent by a child to his friend to be returned in 11 monthly instalments of Re.1 each, the interest being simple. The rate of interest is:

Option 1: $11 \frac{9}{11} \%$

Option 2: $21 \frac{9}{11} \%$

Option 3: $10 \frac{2}{11} \%$

Option 4: $9 \frac{1}{11} \%$

Question : A loan is to be returned in two equal yearly instalments. If the rate of interest is 10% p.a., compounded annually, and each instalment is INR 5,808, then the total interest charged in this scheme is:

Option 1: INR 1,563

Option 2: INR 1,536

Option 3: INR 1,632

Option 4: INR 1,602

Question : What is the present worth of INR 1,100 due in 2 years at 5% simple interest per annum?

Option 1: INR 3,000

Option 2: INR 2,000

Option 3: INR 1,000

Option 4: INR 1,500