28. At what rate per cent per annum will 3600 amount to 34734 in 3
ths, what will 850 amount to in 3 years?
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2
Answer:
We have,
P=Rs.3600
A=Rs.4734
T=3
2
1
=
2
7
years
R=?
We know that
A=P+S.I
S.I=
100
PRT
Therefore,
A−P=
100
PRT
4734−3600=
100
3600×R×
2
7
1134=36×R×
2
7
1134=18×R×7
R=9%
Hence, this is the answer
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