The present price of a ceiling fan is 5670 if its value decreases every year by 10 percent then find its value 3 yrs back
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Ans:given
a=5670
d=10%of 5670 that is
5670×10/100=567
n=3
We know that formula of
A>n=a+(n-1)d
=5670+2(-567)
=5670-1134
=4536
Therefore value of ceiling fan is 4536
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