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Irfan

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· 1 Months ago

LANGUAGE UNCLEAR (Question: 113653.0 )

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Question:
The rate of interest for the first 2 years is 5\(\cfrac{1}{3}\)% per annum, for the next 3 years is 8% per annum and for gets Rs. 1520 as a simple interest for 5 years how much money did he deposited?
Options:
A) Rs. 4384
B) Rs. 3600
C) Rs. 4800
D) Rs.4000
Solution:

Ans: (a)

For 1st 2 year interest  = 2 \(\times 5\cfrac{1}{3}\%\)  

= \(10\cfrac{2}{3}\) %

For next 3 year interest  =  3 \(\times\) 8 = 24%

Total interest = \(10\cfrac{2}{3}\%+\) 24%

= \(34\cfrac{2}{3}\%\)

Now, 

\(34\cfrac{2}{3}\%= 1520\)

\(\therefore\) 100% = \(\cfrac{1520\times3\times100}{104}\)

= 4384

\(\therefore\) principal = 4384

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