a man deposited 1000 dollars in a bank in returned he got 1331 bank gave 10% per annum. how long was the period he deposited the money
as in how many years
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Therefore, 1000(1+
100
10
)
n
=1331
⇒(
10
11
)
n
=
1000
1331
We know, (
10
11
)
3
=
1000
1331
On comparing powers, we get n=3
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