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 14010. What was the worth of the engine 3 before if the value depreciates at the rate of 10% every year.


Answer:_______________




2)  

 The present value of an oil engine is 32752. What was the worth of the engine 2 before if the value depreciates at the rate of 6% every year.


Answer:_______________




3)  

 The present value of an oil engine is 26703. What was the worth of the engine 5 before if the value depreciates at the rate of 3% every year.


Answer:_______________




4)  

 The present value of an oil engine is 39184. What was the worth of the engine 5 before if the value depreciates at the rate of 5% every year.


Answer:_______________




5)  

 The present value of an oil engine is 44819. What was the worth of the engine 3 before if the value depreciates at the rate of 5% every year.


Answer:_______________




6)  

 The present value of an oil engine is 15181. What was the worth of the engine 5 before if the value depreciates at the rate of 5% every year.


Answer:_______________




7)  

 The present value of an oil engine is 30169. What was the worth of the engine 3 before if the value depreciates at the rate of 10% every year.


Answer:_______________




8)  

 The present value of an oil engine is 19615. What was the worth of the engine 2 before if the value depreciates at the rate of 2% every year.


Answer:_______________




9)  

 The present value of an oil engine is 39036. What was the worth of the engine 5 before if the value depreciates at the rate of 9% every year.


Answer:_______________




10)  

 The present value of an oil engine is 15366. What was the worth of the engine 3 before if the value depreciates at the rate of 6% every year.


Answer:_______________




 

1)  

 The present value of an oil engine is 14010. What was the worth of the engine 3 before if the value depreciates at the rate of 10% every year.

Answer: 10213


SOLUTION 1 :

Given :

    A             =   14010

    r              =  10%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   14010[1-(10÷100)]3

                 =   14010[1-0.1]3

                 =    14010 x (0.9)3

                 =   14010 x 0.729

                 =   10213

 



2)  

 The present value of an oil engine is 32752. What was the worth of the engine 2 before if the value depreciates at the rate of 6% every year.

Answer: 28940


SOLUTION 1 :

Given :

    A             =   32752

    r              =  6%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   32752[1-(6÷100)]2

                 =   32752[1-0.06]2

                 =    32752 x (0.94)2

                 =   32752 x 0.8836

                 =   28940

 



3)  

 The present value of an oil engine is 26703. What was the worth of the engine 5 before if the value depreciates at the rate of 3% every year.

Answer: 22931


SOLUTION 1 :

Given :

    A             =   26703

    r              =  3%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   26703[1-(3÷100)]5

                 =   26703[1-0.03]5

                 =    26703 x (0.97)5

                 =   26703 x 0.8587340257

                 =   22931

 



4)  

 The present value of an oil engine is 39184. What was the worth of the engine 5 before if the value depreciates at the rate of 5% every year.

Answer: 30320


SOLUTION 1 :

Given :

    A             =   39184

    r              =  5%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   39184[1-(5÷100)]5

                 =   39184[1-0.05]5

                 =    39184 x (0.95)5

                 =   39184 x 0.7737809375

                 =   30320

 



5)  

 The present value of an oil engine is 44819. What was the worth of the engine 3 before if the value depreciates at the rate of 5% every year.

Answer: 38427


SOLUTION 1 :

Given :

    A             =   44819

    r              =  5%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   44819[1-(5÷100)]3

                 =   44819[1-0.05]3

                 =    44819 x (0.95)3

                 =   44819 x 0.857375

                 =   38427

 



6)  

 The present value of an oil engine is 15181. What was the worth of the engine 5 before if the value depreciates at the rate of 5% every year.

Answer: 11747


SOLUTION 1 :

Given :

    A             =   15181

    r              =  5%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   15181[1-(5÷100)]5

                 =   15181[1-0.05]5

                 =    15181 x (0.95)5

                 =   15181 x 0.7737809375

                 =   11747

 



7)  

 The present value of an oil engine is 30169. What was the worth of the engine 3 before if the value depreciates at the rate of 10% every year.

Answer: 21993


SOLUTION 1 :

Given :

    A             =   30169

    r              =  10%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   30169[1-(10÷100)]3

                 =   30169[1-0.1]3

                 =    30169 x (0.9)3

                 =   30169 x 0.729

                 =   21993

 



8)  

 The present value of an oil engine is 19615. What was the worth of the engine 2 before if the value depreciates at the rate of 2% every year.

Answer: 18838


SOLUTION 1 :

Given :

    A             =   19615

    r              =  2%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   19615[1-(2÷100)]2

                 =   19615[1-0.02]2

                 =    19615 x (0.98)2

                 =   19615 x 0.9604

                 =   18838

 



9)  

 The present value of an oil engine is 39036. What was the worth of the engine 5 before if the value depreciates at the rate of 9% every year.

Answer: 24360


SOLUTION 1 :

Given :

    A             =   39036

    r              =  9%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   39036[1-(9÷100)]5

                 =   39036[1-0.09]5

                 =    39036 x (0.91)5

                 =   39036 x 0.6240321451

                 =   24360

 



10)  

 The present value of an oil engine is 15366. What was the worth of the engine 3 before if the value depreciates at the rate of 6% every year.

Answer: 12763


SOLUTION 1 :

Given :

    A             =   15366

    r              =  6%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   15366[1-(6÷100)]3

                 =   15366[1-0.06]3

                 =    15366 x (0.94)3

                 =   15366 x 0.830584

                 =   12763