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  1. There is 100% increase to an amount in 8 years, at simple interest. Find the compound interest of ₹ 8000 after 2 years at the same rate of interest.
    1. ₹ 2500
    2. ₹ 2000
    3. ₹ 2250
    4. ₹ 2125
Correct Option: D

Let S.I. = ₹ 100, & Principal = ₹ 100

∴  Rate =
S.I. × 100
Principal × Time

Rate =
100 × 100
=
25
%
100 × 82

Given , Principal ( P ) = ₹ 8000 , Time = 2 years
∴ C.I. = P 1 +
r
T − 1
100

C.I. = 8000 1 +
25
2 − 1
200

C.I. = 8000
81
− 1
64

C.I. =
8000 × 17
= ₹ 2125
64



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