M4maths Previous Puzzles

12 Dec 2013 Solve

A scooter is bought for Rs.15000. If its value depreciates at the rate of Rs.900 per year, what is its value at the end of 9th year.

OPtion

1) 7200
2) 12500
3) 8100
4) 9600
5) 7100
6) 7800
7) 6100
8) 7600
9) 10100
10)None of these

Solution

Initial price of the scooter is first term of AP and after 9 deduction the tenth term will be the new cost
By using AP
a=15000, d = -900
Tn = a+(n-1)d
T10 = 15000+(10-1)*(-900)
by solving, we get
T10 = 6900
value at the end of 9th year 6900
option 10)

Correct Option: 10 Best Solution (20)

pratibha Tiwari    10 years AGO

Answer should be 6
Similar to the simple intrest formula
A=P(1-in)
A=15000(1-6%*9)
=6900

Like? Yes (5) | No (2)  

snehal rokade   10 years AGO

15000-(9*900)=15000-8100=6900
none

Like? Yes (2) | No   

ACHESH KUMAR SINGH   10 years AGO

after 9 year its value decreases by 8100 i.e its value becomes 6900

Like? Yes (2) | No   

Ankit Goyal   10 years AGO

Depreciation at rate of Rs. 900 per year
At the end of 9 years depreciation will be 900*9 = Rs. 8100

Value at the end of 9th year = Rs. (15000 - 8100)
= RS. 6900

Like? Yes (5) | No (4)  

LOGAN WOLVERINE   10 years AGO

1 year depreciates rate is 900.
9 year total rate is 8100.

value at the end of 9 th year is
=15000-8100=6900
answer option is 10

Like? Yes (1) | No   

Sunku Mounika   10 years AGO

Ans is 6900.
so option 10.none of these.

Like? Yes (3) | No (3)  

Naveen Kumar   10 years AGO

depreciation rate=(900/15000)*100=6%
value of scooter at the end of 9th year
=15000(1-6/100)^9
=8594.92

Like? Yes (2) | No (2)  

MURALI KUDUPUDI   10 years AGO

900 is 6% of 15000
then we have v=c.p(1-r/100)^n
n=years =9, r=6%,v=15000(1-(6/100))^9=6900

Like? Yes (1) | No (1)  

Gunaseelan   10 years AGO

The actual value of the scooter at the end of 9 years will be 15000 - (9*900) = 15000-8100=6900

Like? Yes (2) | No (2)  

AJAY KUMAR SINHA   10 years AGO

15000-(9*900)=6900

Like? Yes (1) | No (1)  

Gautham Sarang   10 years AGO

15000-9*900=6900

Like? Yes (1) | No (1)  

suhail   10 years AGO

because the answer is 15000-8100=6900

Like? Yes (2) | No (2)  

Sandeep Negi   10 years AGO

15000-9 (900)=6900

Like? Yes (1) | No (2)  

B.jyosthna   10 years AGO

15000-(900*9)=6900

Like? Yes (1) | No (2)  

Devendra Marghade   10 years AGO

Total depreciation in 9 years=9*900=8100
So value at the end of 9th year=15000-8100=6900

Like? Yes (1) | No (2)  

kumari julie   10 years AGO

15000-8100=6900

Like? Yes (1) | No (2)  

Keshav Kishlay   10 years AGO

15000-900*9=6900

Like? Yes (1) | No (2)  

akash   10 years AGO

None of these because per year depreciates with 900 so in 9 years total depreciates = 900 * 9 = 8100 so the value of scooter will be 15000-8100 = 6900.

Like? Yes (1) | No (2)  

Bupathikavya   10 years AGO

15000-(9*900)=6900

Like? Yes (1) | No (2)  

~Sandeep~   10 years AGO

15000 - 9 *9 = 6900

Like? Yes (2) | No (4)