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VIKAS

· started a discussion

· 1 Months ago

please explian (Question: 185025.0 )

need solution in detail..

Question:
A certain sum of money at compound interest compounded yearly, grows to Rs. 146410 in 4 year and to Rs. 161051 in 5 years. Find the principal.
Options:
A) Rs. 100000
B) Rs. 125000
C) Rs. 110000
D) Rs. 108000
Solution:

Ans: (a)

Knowledge Expert

· commented

· 1 Months ago

In 4th year amount = Rs.146410 and in 5th year amount = Rs.161051

so, Interest of 1 year = 161051 - 146410 = 14641

14641 is 10% of 146410, so rate of interest = 10%

Let Principal be P.

P* 11/10 * 11/10* 11/10 * 11/10 = 146410

So, P = Rs. 100000
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