the value of a machine depriciates at 12.5 % p.a . it was purchased 3 years ago . if its ptesent value is Rs 13720 , find the value of machine 3 years ago
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P=?
ROD=12.5 % = 25/2%
Time= 3y
Amount= P (1-R/100)^n
13720= P (1-25/200)^3
13720= P (7/8)^3
13720×512/343= P
40×512=P
Rs. 20480= P
ROD=12.5 % = 25/2%
Time= 3y
Amount= P (1-R/100)^n
13720= P (1-25/200)^3
13720= P (7/8)^3
13720×512/343= P
40×512=P
Rs. 20480= P
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