The amount after 3 years on a principle of ₹ 64000 at the rate of compound interest 12 1/2 p.c.p.a is *
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Principal=64000
Rate=7.5%p.a
Time=3years
Where r is the rate and t is the time.
CI=64000(1+7.5/100)
3
−64000
=64000(1+75/1000)
3
−64000
=64000(1+3/40)
3
−64000
=64000(43/40)
3
−64000
=64000∗43/40∗43/40∗43/40−64000
=43∗43∗43−64000
=79507−64000
=15507
Hence CI will be 15507 rupees
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