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Compound Interest - General Aptitude

Q1:

What will be the compound interest on a sum of Rs. 25,000 after 3 years at the rate of 12 p.c.p.a.?

A Rs. 9000.30

B Rs. 9720

C Rs. 10123.20

D Rs. 10483.20

E None of these

ANS:C - Rs. 10123.20

Amount
= Rs. 25000 x 1 + 12 3
100
 
= Rs. 25000 x 28 x 28 x 28
25 25 25
  = Rs. 35123.20
 C.I. = Rs. (35123.20 - 25000) = Rs. 10123.20