If difference between C.I. compounded half yearly and simple interest on a sum at 10 % per annum for

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6.Interest

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If the difference between the $C.I.$ compounded half yearly and simple interest on a sum at $10 \%$ per annum for one year is $Rs. 25,$ the sum (In $Rs.$) is

A

$9000$

B

$9500$

C

$10000$

D

$10500$

Solution

Year = 2 years,

$R =\frac{10}{2}=5 \%$

[. CI is compounded half-yearly]

Difference between CI and SI for 2 years $=\frac{ PR ^{2}}{100^{2}}$

$25=\frac{P \times 25}{100 \times 100} ; P=R s .10000$

Standard 13

Quantitative Aptitude

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