Question

In: Economics

Economy A family has borrowed $100,000 to purchase a new home. The interest rate is fixed...

Economy

A family has borrowed $100,000 to purchase a new home. The interest rate is fixed at 12% compounded monthly over the 25-year life of the loan. Find the remaining balance on the loan immediately after the payment listed Also find the amount of interest that comprises the payment listed. Payment 30   

please answer in detail

Solutions

Expert Solution

If the total loan amount is P, periodic interest rate is (i), and total loan period is (t), and number of emi paid is [c]

we can find remaining loan amount (B) using below formula

B = P [(1 + i) ^n - (1 + i) ^c]/ [(1 + i) ^n -1]

Where,

                  Loan amount (P) = $100000

                  Interest rate = 1% per period

                  Total loan term (n) = 300 months

                  Loan paid for period [c] = 30 months

Let's put all the values in the formula

B = 100000* [(1 + 0.01) ^300 - (1 + 0.01) ^30]/ [(1 + 0.01) ^300 - 1]

    = 100000* [(1.01) ^300 - (1.01) ^30]/ [(1.01) ^300 - 1]

    = 100000* [19.7884662619 - 1.3478489153]/ [19.7884662619 - 1]

    = 100000* [18.4406173466/ 18.7884662619]

    = 100000* 0.9814860399

    = 98148.6

So remaining loan amount is $98148.6

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To calculate the interest part in the 30th EMI we need to first calculate EMI then prepare loan amortisation schedule.

If the loan amount is P, rate on interest (monthly is r, and loan term is n the EMI will be

EMI= P*r[(1 +r)^n]/ [(1+ r)^n- 1]

= 100000*0.01[(1 +0.01)^300]/ [(1+ 0.01)^300- 1]

= 1000[(1.01)^300]/ [(1.01)^300- 1]

= 1000[19.79]/ [19.7884662619245- 1]

= 1000[19.79]/ [18.7884662619245]

= 1000[1.05330577409105]

= 1053.31

So EMI will be $1053.31

EMI

Loan balance

EMI

Interest (Loan * interest)

Principle (EMI - Interest)

Loan balance

1

1,00,000.00000

1,053.31000

1,000.00000

53.31

99946.69

2

99,946.69000

1,053.31000

999.46690

53.84

99892.85

3

99,892.84690

1,053.31000

998.92847

54.38

99838.47

4

99,838.46537

1,053.31000

998.38465

54.93

99783.54

5

99,783.54002

1,053.31000

997.83540

55.47

99728.07

6

99,728.06542

1,053.31000

997.28065

56.03

99672.04

7

99,672.03608

1,053.31000

996.72036

56.59

99615.45

8

99,615.44644

1,053.31000

996.15446

57.16

99558.29

9

99,558.29090

1,053.31000

995.58291

57.73

99500.56

10

99,500.56381

1,053.31000

995.00564

58.30

99442.26

11

99,442.25945

1,053.31000

994.42259

58.89

99383.37

12

99,383.37204

1,053.31000

993.83372

59.48

99323.90

13

99,323.89576

1,053.31000

993.23896

60.07

99263.82

14

99,263.82472

1,053.31000

992.63825

60.67

99203.15

15

99,203.15297

1,053.31000

992.03153

61.28

99141.87

16

99,141.87450

1,053.31000

991.41874

61.89

99079.98

17

99,079.98324

1,053.31000

990.79983

62.51

99017.47

18

99,017.47308

1,053.31000

990.17473

63.14

98954.34

19

98,954.33781

1,053.31000

989.54338

63.77

98890.57

20

98,890.57119

1,053.31000

988.90571

64.40

98826.17

21

98,826.16690

1,053.31000

988.26167

65.05

98761.12

22

98,761.11857

1,053.31000

987.61119

65.70

98695.42

23

98,695.41975

1,053.31000

986.95420

66.36

98629.06

24

98,629.06395

1,053.31000

986.29064

67.02

98562.04

25

98,562.04459

1,053.31000

985.62045

67.69

98494.36

26

98,494.35503

1,053.31000

984.94355

68.37

98425.99

27

98,425.98858

1,053.31000

984.25989

69.05

98356.94

28

98,356.93847

1,053.31000

983.56938

69.74

98287.20

29

98,287.19786

1,053.31000

982.87198

70.44

98216.76

30

98,216.75983

1,053.31000

982.16760

71.14

98145.62

So interest in the 30th EMI is $982.16760

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