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 24079. What was the worth of the engine 5 before if the value depreciates at the rate of 7% every year.


Answer:_______________




2)  

 The present value of an oil engine is 39136. What was the worth of the engine 5 before if the value depreciates at the rate of 2% every year.


Answer:_______________




3)  

 The present value of an oil engine is 23574. What was the worth of the engine 2 before if the value depreciates at the rate of 3% every year.


Answer:_______________




4)  

 The present value of an oil engine is 19134. What was the worth of the engine 3 before if the value depreciates at the rate of 10% every year.


Answer:_______________




5)  

 The present value of an oil engine is 48434. What was the worth of the engine 3 before if the value depreciates at the rate of 2% every year.


Answer:_______________




6)  

 The present value of an oil engine is 23764. What was the worth of the engine 5 before if the value depreciates at the rate of 4% every year.


Answer:_______________




7)  

 The present value of an oil engine is 19896. What was the worth of the engine 3 before if the value depreciates at the rate of 6% every year.


Answer:_______________




8)  

 The present value of an oil engine is 27743. What was the worth of the engine 4 before if the value depreciates at the rate of 9% every year.


Answer:_______________




9)  

 The present value of an oil engine is 16270. What was the worth of the engine 3 before if the value depreciates at the rate of 6% every year.


Answer:_______________




10)  

 The present value of an oil engine is 49279. What was the worth of the engine 3 before if the value depreciates at the rate of 5% every year.


Answer:_______________




 

1)  

 The present value of an oil engine is 24079. What was the worth of the engine 5 before if the value depreciates at the rate of 7% every year.

Answer: 16751


SOLUTION 1 :

Given :

    A             =   24079

    r              =  7%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   24079[1-(7÷100)]5

                 =   24079[1-0.07]5

                 =    24079 x (0.93)5

                 =   24079 x 0.6956883693

                 =   16751

 



2)  

 The present value of an oil engine is 39136. What was the worth of the engine 5 before if the value depreciates at the rate of 2% every year.

Answer: 35376


SOLUTION 1 :

Given :

    A             =   39136

    r              =  2%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   39136[1-(2÷100)]5

                 =   39136[1-0.02]5

                 =    39136 x (0.98)5

                 =   39136 x 0.9039207968

                 =   35376

 



3)  

 The present value of an oil engine is 23574. What was the worth of the engine 2 before if the value depreciates at the rate of 3% every year.

Answer: 22181


SOLUTION 1 :

Given :

    A             =   23574

    r              =  3%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   23574[1-(3÷100)]2

                 =   23574[1-0.03]2

                 =    23574 x (0.97)2

                 =   23574 x 0.9409

                 =   22181

 



4)  

 The present value of an oil engine is 19134. What was the worth of the engine 3 before if the value depreciates at the rate of 10% every year.

Answer: 13949


SOLUTION 1 :

Given :

    A             =   19134

    r              =  10%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   19134[1-(10÷100)]3

                 =   19134[1-0.1]3

                 =    19134 x (0.9)3

                 =   19134 x 0.729

                 =   13949

 



5)  

 The present value of an oil engine is 48434. What was the worth of the engine 3 before if the value depreciates at the rate of 2% every year.

Answer: 45586


SOLUTION 1 :

Given :

    A             =   48434

    r              =  2%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   48434[1-(2÷100)]3

                 =   48434[1-0.02]3

                 =    48434 x (0.98)3

                 =   48434 x 0.941192

                 =   45586

 



6)  

 The present value of an oil engine is 23764. What was the worth of the engine 5 before if the value depreciates at the rate of 4% every year.

Answer: 19377


SOLUTION 1 :

Given :

    A             =   23764

    r              =  4%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   23764[1-(4÷100)]5

                 =   23764[1-0.04]5

                 =    23764 x (0.96)5

                 =   23764 x 0.8153726976

                 =   19377

 



7)  

 The present value of an oil engine is 19896. What was the worth of the engine 3 before if the value depreciates at the rate of 6% every year.

Answer: 16525


SOLUTION 1 :

Given :

    A             =   19896

    r              =  6%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   19896[1-(6÷100)]3

                 =   19896[1-0.06]3

                 =    19896 x (0.94)3

                 =   19896 x 0.830584

                 =   16525

 



8)  

 The present value of an oil engine is 27743. What was the worth of the engine 4 before if the value depreciates at the rate of 9% every year.

Answer: 19025


SOLUTION 1 :

Given :

    A             =   27743

    r              =  9%

    n             =   4 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   27743[1-(9÷100)]4

                 =   27743[1-0.09]4

                 =    27743 x (0.91)4

                 =   27743 x 0.68574961

                 =   19025

 



9)  

 The present value of an oil engine is 16270. What was the worth of the engine 3 before if the value depreciates at the rate of 6% every year.

Answer: 13514


SOLUTION 1 :

Given :

    A             =   16270

    r              =  6%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   16270[1-(6÷100)]3

                 =   16270[1-0.06]3

                 =    16270 x (0.94)3

                 =   16270 x 0.830584

                 =   13514

 



10)  

 The present value of an oil engine is 49279. What was the worth of the engine 3 before if the value depreciates at the rate of 5% every year.

Answer: 42251


SOLUTION 1 :

Given :

    A             =   49279

    r              =  5%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   49279[1-(5÷100)]3

                 =   49279[1-0.05]3

                 =    49279 x (0.95)3

                 =   49279 x 0.857375

                 =   42251