Question 11 Mark
$\text{Rate}=\frac{100\times\text{S.I.}}{\text{P}\times\text{T}}$
Answer
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Solution:
$\text{S.I.}=\frac{\text{P}\times\text{R}\times\text{T}}{100}$
$\Rightarrow\text{x}=\frac{\text{x}\times\text{R}\times\text{x}}{100}$
$\Rightarrow\text{R}=\frac{100\times\text{x}}{\text{x}\times\text{x}}$
$\Rightarrow\text{R}=\frac{100}{\text{x}}\%$
Solution:
P = Rs. 1000
R = 5%
T = 73 days
$=\frac{73}{365}\text{ days}$
$\text{S.I.}=\frac{\text{P}\times\text{R}\times\text{T}}{100}$
$=\frac{1000\times5\times73}{100\times365}$
$=\text{Rs. }10$
Solution:
Let the sum be Rs. x
$\text{S.I.}=\frac{\text{P}\times\text{R}\times\text{T}}{100}$
$\text{S.I.}=\frac{\text{x}\times10\times10}{100}$
$\text{S.I.}=\text{Rs. x}$
Amount = S.I. + P
= x + x
= Rs. 2x