Scroll:Life mathematics >> profit and loss >> saq (4292)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

 The present value of an oil engine is 21969. What was the worth of the engine 2 before if the value depreciates at the rate of 5% every year.


Answer:_______________




2)  

 The present value of an oil engine is 41436. What was the worth of the engine 4 before if the value depreciates at the rate of 9% every year.


Answer:_______________




3)  

 The present value of an oil engine is 42772. What was the worth of the engine 3 before if the value depreciates at the rate of 4% every year.


Answer:_______________




4)  

 The present value of an oil engine is 31343. What was the worth of the engine 2 before if the value depreciates at the rate of 8% every year.


Answer:_______________




5)  

 The present value of an oil engine is 25278. What was the worth of the engine 2 before if the value depreciates at the rate of 7% every year.


Answer:_______________




6)  

 The present value of an oil engine is 37846. What was the worth of the engine 3 before if the value depreciates at the rate of 3% every year.


Answer:_______________




7)  

 The present value of an oil engine is 36586. What was the worth of the engine 5 before if the value depreciates at the rate of 5% every year.


Answer:_______________




8)  

 The present value of an oil engine is 33075. What was the worth of the engine 5 before if the value depreciates at the rate of 4% every year.


Answer:_______________




9)  

 The present value of an oil engine is 16397. What was the worth of the engine 2 before if the value depreciates at the rate of 5% every year.


Answer:_______________




10)  

 The present value of an oil engine is 15231. What was the worth of the engine 3 before if the value depreciates at the rate of 2% every year.


Answer:_______________




 

1)  

 The present value of an oil engine is 21969. What was the worth of the engine 2 before if the value depreciates at the rate of 5% every year.

Answer: 19827


SOLUTION 1 :

Given :

    A             =   21969

    r              =  5%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   21969[1-(5÷100)]2

                 =   21969[1-0.05]2

                 =    21969 x (0.95)2

                 =   21969 x 0.9025

                 =   19827

 



2)  

 The present value of an oil engine is 41436. What was the worth of the engine 4 before if the value depreciates at the rate of 9% every year.

Answer: 28415


SOLUTION 1 :

Given :

    A             =   41436

    r              =  9%

    n             =   4 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   41436[1-(9÷100)]4

                 =   41436[1-0.09]4

                 =    41436 x (0.91)4

                 =   41436 x 0.68574961

                 =   28415

 



3)  

 The present value of an oil engine is 42772. What was the worth of the engine 3 before if the value depreciates at the rate of 4% every year.

Answer: 37842


SOLUTION 1 :

Given :

    A             =   42772

    r              =  4%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   42772[1-(4÷100)]3

                 =   42772[1-0.04]3

                 =    42772 x (0.96)3

                 =   42772 x 0.884736

                 =   37842

 



4)  

 The present value of an oil engine is 31343. What was the worth of the engine 2 before if the value depreciates at the rate of 8% every year.

Answer: 26529


SOLUTION 1 :

Given :

    A             =   31343

    r              =  8%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   31343[1-(8÷100)]2

                 =   31343[1-0.08]2

                 =    31343 x (0.92)2

                 =   31343 x 0.8464

                 =   26529

 



5)  

 The present value of an oil engine is 25278. What was the worth of the engine 2 before if the value depreciates at the rate of 7% every year.

Answer: 21863


SOLUTION 1 :

Given :

    A             =   25278

    r              =  7%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   25278[1-(7÷100)]2

                 =   25278[1-0.07]2

                 =    25278 x (0.93)2

                 =   25278 x 0.8649

                 =   21863

 



6)  

 The present value of an oil engine is 37846. What was the worth of the engine 3 before if the value depreciates at the rate of 3% every year.

Answer: 34541


SOLUTION 1 :

Given :

    A             =   37846

    r              =  3%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   37846[1-(3÷100)]3

                 =   37846[1-0.03]3

                 =    37846 x (0.97)3

                 =   37846 x 0.912673

                 =   34541

 



7)  

 The present value of an oil engine is 36586. What was the worth of the engine 5 before if the value depreciates at the rate of 5% every year.

Answer: 28310


SOLUTION 1 :

Given :

    A             =   36586

    r              =  5%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   36586[1-(5÷100)]5

                 =   36586[1-0.05]5

                 =    36586 x (0.95)5

                 =   36586 x 0.7737809375

                 =   28310

 



8)  

 The present value of an oil engine is 33075. What was the worth of the engine 5 before if the value depreciates at the rate of 4% every year.

Answer: 26968


SOLUTION 1 :

Given :

    A             =   33075

    r              =  4%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   33075[1-(4÷100)]5

                 =   33075[1-0.04]5

                 =    33075 x (0.96)5

                 =   33075 x 0.8153726976

                 =   26968

 



9)  

 The present value of an oil engine is 16397. What was the worth of the engine 2 before if the value depreciates at the rate of 5% every year.

Answer: 14798


SOLUTION 1 :

Given :

    A             =   16397

    r              =  5%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   16397[1-(5÷100)]2

                 =   16397[1-0.05]2

                 =    16397 x (0.95)2

                 =   16397 x 0.9025

                 =   14798

 



10)  

 The present value of an oil engine is 15231. What was the worth of the engine 3 before if the value depreciates at the rate of 2% every year.

Answer: 14335


SOLUTION 1 :

Given :

    A             =   15231

    r              =  2%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   15231[1-(2÷100)]3

                 =   15231[1-0.02]3

                 =    15231 x (0.98)3

                 =   15231 x 0.941192

                 =   14335