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venkat

· started a discussion

· 1 Months ago

SIMPLE INTEREST AND COMPOUND INTEREST (Question: 104117.0 )

DID NOT GET THE EXPLANATION

Question:

The difference between C.I. and S.I. on a certain sum of money at 10% per annum for 3 year is Rs.930, find the principal if it is known that the interest is compounded annually ?

Options:
A) Rs.30,000
B) Rs.3,00,000
C) Rs.20,000
D) Rs.2,00,000
E) None of these
Solution:

The difference between C.I. and S.I. for 3 years = p(r/100)2{(300+r)/100}

kanhaiya jha

· commented

· 1 Months ago

Apply the tricks:

The difference between C.I. and S.I. for 3 years = p(r/100)2{(300+r)/100}
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