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 26897. What was the worth of the engine 2 before if the value depreciates at the rate of 4% every year.


Answer:_______________




2)  

 The present value of an oil engine is 36022. What was the worth of the engine 2 before if the value depreciates at the rate of 9% every year.


Answer:_______________




3)  

 The present value of an oil engine is 40013. What was the worth of the engine 2 before if the value depreciates at the rate of 10% every year.


Answer:_______________




4)  

 The present value of an oil engine is 10635. What was the worth of the engine 4 before if the value depreciates at the rate of 4% every year.


Answer:_______________




5)  

 The present value of an oil engine is 12814. What was the worth of the engine 4 before if the value depreciates at the rate of 9% every year.


Answer:_______________




6)  

 The present value of an oil engine is 10567. What was the worth of the engine 4 before if the value depreciates at the rate of 7% every year.


Answer:_______________




7)  

 The present value of an oil engine is 28277. What was the worth of the engine 4 before if the value depreciates at the rate of 8% every year.


Answer:_______________




8)  

 The present value of an oil engine is 40719. What was the worth of the engine 4 before if the value depreciates at the rate of 8% every year.


Answer:_______________




9)  

 The present value of an oil engine is 34306. What was the worth of the engine 5 before if the value depreciates at the rate of 10% every year.


Answer:_______________




10)  

 The present value of an oil engine is 34239. What was the worth of the engine 3 before if the value depreciates at the rate of 9% every year.


Answer:_______________




 

1)  

 The present value of an oil engine is 26897. What was the worth of the engine 2 before if the value depreciates at the rate of 4% every year.

Answer: 24788


SOLUTION 1 :

Given :

    A             =   26897

    r              =  4%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   26897[1-(4÷100)]2

                 =   26897[1-0.04]2

                 =    26897 x (0.96)2

                 =   26897 x 0.9216

                 =   24788

 



2)  

 The present value of an oil engine is 36022. What was the worth of the engine 2 before if the value depreciates at the rate of 9% every year.

Answer: 29830


SOLUTION 1 :

Given :

    A             =   36022

    r              =  9%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   36022[1-(9÷100)]2

                 =   36022[1-0.09]2

                 =    36022 x (0.91)2

                 =   36022 x 0.8281

                 =   29830

 



3)  

 The present value of an oil engine is 40013. What was the worth of the engine 2 before if the value depreciates at the rate of 10% every year.

Answer: 32411


SOLUTION 1 :

Given :

    A             =   40013

    r              =  10%

    n             =   2 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   40013[1-(10÷100)]2

                 =   40013[1-0.1]2

                 =    40013 x (0.9)2

                 =   40013 x 0.81

                 =   32411

 



4)  

 The present value of an oil engine is 10635. What was the worth of the engine 4 before if the value depreciates at the rate of 4% every year.

Answer: 9033


SOLUTION 1 :

Given :

    A             =   10635

    r              =  4%

    n             =   4 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   10635[1-(4÷100)]4

                 =   10635[1-0.04]4

                 =    10635 x (0.96)4

                 =   10635 x 0.84934656

                 =   9033

 



5)  

 The present value of an oil engine is 12814. What was the worth of the engine 4 before if the value depreciates at the rate of 9% every year.

Answer: 8787


SOLUTION 1 :

Given :

    A             =   12814

    r              =  9%

    n             =   4 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   12814[1-(9÷100)]4

                 =   12814[1-0.09]4

                 =    12814 x (0.91)4

                 =   12814 x 0.68574961

                 =   8787

 



6)  

 The present value of an oil engine is 10567. What was the worth of the engine 4 before if the value depreciates at the rate of 7% every year.

Answer: 7905


SOLUTION 1 :

Given :

    A             =   10567

    r              =  7%

    n             =   4 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   10567[1-(7÷100)]4

                 =   10567[1-0.07]4

                 =    10567 x (0.93)4

                 =   10567 x 0.74805201

                 =   7905

 



7)  

 The present value of an oil engine is 28277. What was the worth of the engine 4 before if the value depreciates at the rate of 8% every year.

Answer: 20257


SOLUTION 1 :

Given :

    A             =   28277

    r              =  8%

    n             =   4 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   28277[1-(8÷100)]4

                 =   28277[1-0.08]4

                 =    28277 x (0.92)4

                 =   28277 x 0.71639296

                 =   20257

 



8)  

 The present value of an oil engine is 40719. What was the worth of the engine 4 before if the value depreciates at the rate of 8% every year.

Answer: 29171


SOLUTION 1 :

Given :

    A             =   40719

    r              =  8%

    n             =   4 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   40719[1-(8÷100)]4

                 =   40719[1-0.08]4

                 =    40719 x (0.92)4

                 =   40719 x 0.71639296

                 =   29171

 



9)  

 The present value of an oil engine is 34306. What was the worth of the engine 5 before if the value depreciates at the rate of 10% every year.

Answer: 20257


SOLUTION 1 :

Given :

    A             =   34306

    r              =  10%

    n             =   5 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   34306[1-(10÷100)]5

                 =   34306[1-0.1]5

                 =    34306 x (0.9)5

                 =   34306 x 0.59049

                 =   20257

 



10)  

 The present value of an oil engine is 34239. What was the worth of the engine 3 before if the value depreciates at the rate of 9% every year.

Answer: 25802


SOLUTION 1 :

Given :

    A             =   34239

    r              =  9%

    n             =   3 years

Depreciation:

    A           =   P[1-(r÷100)]n

                 =   34239[1-(9÷100)]3

                 =   34239[1-0.09]3

                 =    34239 x (0.91)3

                 =   34239 x 0.753571

                 =   25802