The price of a scooter despreciates by 2% of its value at the beginning of each year . find the sale value of the scooter after 3 years, if its present sale value is rupees 12, 000.
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Present value= 12000
Next year:
2%of 12000
=> 2/100*12000
=> 240
12000 - 240 = 11760
:. a = 12000
d = -240
n = 3
a(n) = ?
a(n) = a + (n-1)d
= 12000 + (3-1)(-240)
= 12000 - 2*240
= 12000 - 480
= 11520
use formula of simple interest or compound interest
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