Question

the simple interest of rs 300 for 5 years is rs 165 then the rate of interest is ??
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Answer 1

Given :-

Principal = ₹300

Simple Interest = ₹165

Time = 5 years

To Find :-

The rate of interest

Solution :-

We know that,

$SI\: =\: {\dfrac{P\: \times\: R\: \times\: T}{100}}$

On inserting the values in the formula

We get ,

$165\: =\: {\dfrac{300\: \times\: R\: \times\: 5}{100}}$

$\implies\: R\: =\: {\dfrac{165\: \times\: 100}{300\: \times\: 5}}$

=> R = 11

Therefore, rate of interest is 11%

Short-hands Used :-

P - Principal

R - Rate of interest

T - Time period

SI - Simple Interest

Answer 2

Answer:

$\huge \sf \: given$

• Simple interest = ₹300
• Time = 5 years
• Principal = ₹165

$\huge \sf \: to \: find$

Rate

$\huge \sf \: answer$

As we know that

$\huge \bf \blue {si \: = \frac{p \times r \times t}{100} }$

$165 = \frac{300\times r \times 5}{100}$

$r \: = \frac{165 \times 100}{300 \times 5}$

$rate \: = 11\%$

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Here

$\huge \bf {R - Rate}$

$\huge \bf {SI - Simple interest}$

$\huge \bf {T - Time}$

$\huge \bf {P - Principal}$