The number of years in which ₹ 100 gives interest of ₹ 100 at the rate of 100% simple interest per annum is
100 years
10 years
1 year
1000 years
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Answer:
Given
time=2yrs
Principal=100
Amount=121
to find rate
A=P(1+
100
R
)
n
121=100(1+
100
R
)
2
100
121
=(1+
100
R
)
2
(10)
2
(11)
2
=(1+
100
R
)
2
now we will remove sq root of both sides L.HS and R.H.S
10
11
=(1+
100
R
)
10
11
−1=(
100
R
)
10
1
=(
100
R
)
R=
10
1
×100=10
Rate will be 10%
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