Question
Mathematics Question on Compound Interest
A property dealer wishes to buy different houses given in the table below with some down payments and balance in EMI for 25 years. Bank charges 6% per annum compounded monthly.
(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
(A) - (I), (B) - (III), (C) - (IV), (D) - (II)
(A) - (III), (B) - (IV), (C) - (I), (D) - (II)
(A) - (III), (B) - (IV), (C) - (II), (D) - (I)
(A) - (I), (B) - (III), (C) - (IV), (D) - (II)
Solution
The formula for EMI is:
EMI=Loan Amount×(1+r)n−1(1+r)n⋅r.
Here:
r=12Annual Interest Rate=100⋅126=0.005,
n=Loan Tenure in Months=25×12=300,
The given value (1.005)300−1(1.005)300⋅0.005=0.0064.
The EMI for each property is calculated as:
EMI=Loan Amount×0.0064.
For Property P:
Loan Amount=45,00,000−5,00,000=40,00,000
EMI=40,00,000×0.0064=25,600
For Property Q:
Loan Amount=55,00,000−5,00,000=50,00,000
EMI=50,00,000×0.0064=32,000
For Property R:
Loan Amount=65,00,000−10,00,000=55,00,000
EMI=55,00,000×0.0064=35,200
For Property S:
Loan Amount=75,00,000−15,00,000=60,00,000
EMI=60,00,000×0.0064=38,400
Final Matching: (A) P (I) 25,600 (B) Q (III) 32,000 (C) R (IV) 35,200 (D) S (II) 38,400
Thus, the correct option is (2).