Question

a TV set costing rupees 9000 depreciation value every year by 10% of its value at the beginning of the earth what will be its value after 2 years

Answer 1

the compound interest formula is used
amount=9000(1-10/100)²
9000×9/10×9/10
81×90=7290

Answer 2

 IN Depreciation, A=p(1-r/100)^t
p=9000
t=2 yrs
r=10
So, A=p(1-r/100)^t
      A= 9000(1-10%(or 10/100))²
    ∴A=9000 ×90/100×90/100
So, Ans- Amount at the end of 2 yrs is Rs7290.
I hope it was helpful.

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