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Find Compound Interest on Rs 31250 for 3 Years, If the Rates of Interest for 1st,2nd and 3rd Years Be 8%, 10% and 12% Respectively. - Mathematics

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Question

Find compound interest on Rs 31250 for 3 years, if the rates of interest for 1st,2nd and 3rd years be 8%, 10% and 12% respectively.

Sum
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Solution

Here P = Rs.31250, t = 3 years, r = 8%, 10%, 12% successively.
Now, Amount
= `"P"(1 + "r"_1/100)(1 + "r"_2/100)(1 + "r"_3/100)`

= `31250(1 + 8/100)(1 + 10/100)(1 + 12/100)`

= `31250(108/100)(110/100)(112/100)`
= 41580
Hence, Amount = Rs.41580.

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Concept of Compound Interest - Use of Compound Interest in Computing Amount Over a Period of 2 Or 3-years
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Chapter 3: Compound Interest - Exercise 3.2

APPEARS IN

Frank Mathematics [English] Class 9 ICSE
Chapter 3 Compound Interest
Exercise 3.2 | Q 6

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