Section 1 of 3 Aptitude 32 33 34 35 Question 39 ve A certain amount of money amounts to $9.720 after two years of depreciatioeing charged 10% per annum. What was the original amount?
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Answer:
For ,
N=3 years
R=10%
We have Amount=P+S.I.=P+
100
PNR
=Rs.23,400
=>P+
100
P×3×10
=23,400
=>1.3P=Rs.23,400
=>P=Rs.18,000
And on interest being compounded for 2 years, at R=10 % Amount=P(1+
100
R
)
N
=18,000×(1+
100
10
)
2
=18,000×1.1
2
=Rs.21,780
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