Question

The interest of a sum of money in 6 years is 3/8 of the principal. What is the rate of interest ? ​

Answer 1

Step-by-step explanation:

✞︎Given»

• ☀︎︎The interest of a sum of money in 6 years is 3/8 of the principal. What is the rate of interest ?

✞︎To Find»

• ☀︎︎Rate of Interest(I)

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$\tt\large\underline\purple{Formula \: \: Used:}$

• ☀︎︎Simple interest formula is S.I = PxTxR/100

• ☀︎︎ From the question ; S.I = (3/8) principal 3/8p = px6xr/100

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✞︎Eliminate p on both sides of the equation r =

$\large{✰} \bf\underline\color{red}{(3x100) }$

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$\large{✰} \bf \underline\color{blue}{(8 \times 6)}$

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$\large{✰} \bf \underline\color{green}{r = 300 \div 48 }$

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$\large{✰} \bf \underline\color{pink}{r = 6.25}$

✞︎Required Answer

$\tt\large\underline\pink{r = 6.25}$

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