Question

Write the answer.......
Calculate the rate of interest
Principle :- Rs 50000
Simple interest :- Rs 15000
Time :- 2 years​

Answer 1

➤ Given :-

Principle :- ₹ 50000

Simple interest :- ₹ 15000

Time :- 2 years

➤ To Find :-

Rate of interest of the given sum.............

➤ Formula required :-

${\large \tt \dashrightarrow \orange {\boxed{\tt \gray{\frac{SI \times 100}{P \times T}}}}}$

➤ Solution :-

Rate of interest :-

${\tt \longrightarrow \dfrac{15000 \times 100}{50000 \times 2}}$

${\tt \longrightarrow \dfrac{15000 \times \cancel{100}}{\cancel{50000} \times 2} = \dfrac{15000 \times 1}{500 \times 2}}$

${\tt \longrightarrow \dfrac{\cancel{15000} \times 1}{\cancel{500} \times 2} = \dfrac{30 \times 1}{1 \times 2}}$

${\tt \longrightarrow \cancel \dfrac{30}{2} = \boxed{\tt 15 \bf\%}}$

$\Huge\therefore$ The rate of interest of the given sum is 15 ${\bf\%}$.

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$\dashrightarrow$ Some related formulas :-

Simple interest :- ${\boxed{\tt\dfrac{P \times R \times T}{100}}}$

Principle :- ${\boxed{\tt\dfrac{SI \times 100}{R \times T}}}$

Time :- ${\boxed{\tt\dfrac{SI \times 100}{P \times R}}}$

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More to know..................

• Simple Interest is the extra amount to be given when a person borrows some money from a person or a bank. The person who gives money is called lender. The person who takes money is called borrower.
• Principal is the amount given at first from lender to borrower.
• Rate of interest is the extra amount to be given from borrower to lender. It is always written in percentage format.
• Time is given for the borrower to return back the given money with the given interest.