Question : A computer is available for INR 39,000 on cash payment or INR 19,000 as cash payment followed by five monthly instalments of INR 4,200 each. What is the rate of interest per annum under the instalment plan?

Option 1: $20 \frac{19}{29} \%$

Option 2: $20 \frac{17}{29} \%$

Option 3: $20 \frac{20}{29} \%$

Option 4: $20 \frac{18}{29} \%$

Question : What sum will become INR 9,826 in 18 months if the rate of interest is $2 \frac{1}{2} \%$ per annum and the interest is compounded half-yearly?

Option 1: INR 9,392.00

Option 2: INR 9,444.00

Option 3: INR 9,512.45

Option 4: INR 9,466.55

Question : If INR 2,000 is invested at a simple interest rate of 5% per annum and the interest is added to the principal after 10 years, then in how many years will it amount to INR 4,000 at the same rate of interest?

Option 1: $18 \frac{2}{3}$ years

Option 2: $16 \frac{1}{3}$ years

Option 3: $16 \frac{2}{3}$ years

Option 4: $18 \frac{1}{3}$ years

Question : Find the Compound Interest on INR 10,000 for $1 \frac{1}{2}$ years at 20% per annum, interest is payable half-yearly.

Option 1: INR 3,315

Option 2: INR 3,310

Option 3: INR 3,305

Option 4: INR 3,320

Question : A spends 68% of his monthly income. If A's monthly income increases by 25% and his monthly savings increase by 15%, then the percentage increase in his monthly expenditure will be:

Option 1: $27 \frac{13}{17}$%

Option 2: $29 \frac{12}{17} $%

Option 3: $33 \frac{7}{17}$%

Option 4: $31 \frac{6}{17} $%

Question : On a sum of money for 2 years compound interest and simple interest are INR 550 and INR 500. Find the rate of interest (per annum).

Option 1: 40%

Option 2: 10%

Option 3: 20%

Option 4: 30%