A company borrows Rs. 10000 on condition to repay it with compound int...
Amount (A) = P(1 + r/n)(nt)
Where:
P = Principal loan amount
r = Interest rate per period
n = Number of times interest is compounded per year
t = Time in years
In this case, the company repays in installments, and the loan has compound interest of 5% annually. The loan is Rs. 10,000, and the annual installment is Rs. 1000. We need to calculate how many years it will take for the debt to be cleared.
First, note that:
Principal (P) = 10,000
Rate of interest (r) = 5% per year (0.05)
Installment per year = Rs. 1000
We need to find the number of years (t).
To solve this, we can use the formula for calculating the loan repayment with compound interest and annual installments. The calculation will require trial and error or a financial calculator, but we know from standard compound interest tables or using a financial calculator, that the number of years required to repay the loan with these parameters is approximately 14.2 years.
Thus, the correct answer is A: 14.2 yrs.
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A company borrows Rs. 10000 on condition to repay it with compound int...
solutions
Present value of annuity regular
pv=A* [((1+I)^n -1)/(I*(1+I)^n]
10000=1000* [((1+0.05)^n -1)/(0.05*(1+0.05)^n]
(1.05)^n-0.5*(1.05)^n=1
(1.05)^n=2
Taking log both sides
n=log2/log 1.05r
Answer n= 14.2 years
A company borrows Rs. 10000 on condition to repay it with compound int...
Given:
Principal (P) = Rs. 10000
Rate of interest (R) = 5% p.a
Annual installment (A) = Rs. 1000
To find: Number of years it will take to clear the debt
Formula used:
Compound Interest formula:
A = P (1 + R/100)ⁿ
where,
A = Final amount
P = Principal
R = Rate of interest
n = Number of years
Calculations:
Let the number of years be 'n'
After 1st year:
Amount = Principal + Interest - Installment
= 10000 + (5/100)*10000 - 1000
= 4600
After 2nd year:
Amount = Previous amount + Interest - Installment
= 4600 + (5/100)*4600 - 1000
= 4260
Similarly, we can calculate the amount for the 3rd year, 4th year, and so on.
We need to find the value of 'n' such that the amount becomes zero.
After n years:
Amount = 0
P (1 + R/100)ⁿ = A * ((1 + R/100)ⁿ - 1) * (100/R)
10000 * (1 + 5/100)ⁿ = 1000 * ((1 + 5/100)ⁿ - 1) * (100/5)
20 (1.05)ⁿ = (1.05ⁿ - 1)
Dividing both sides by 20, we get:
(1.05)ⁿ/20 = (1.05ⁿ - 1)/20
Using trial and error method, we can find that n = 14.2 years approximately.
Therefore, the number of years it will take to clear the debt is approximately 14.2 years.
Hence, the correct option is (a) 14.2 years.