Question

A sum triple itself at simple interest in 10 years when the rate of interest is _?​

Answer 1

Answer:

Answer. So rate of percentage per annum must be 12.5% to triple the sum.

Step-by-step explanation:

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Answer 2

Answer:

$\frac{p \times r \times 2}{100} = 3p$

$\frac{r \times 2}{100 } = \frac{3p}{p}$

$\frac{2r}{100} = p$

$r = \frac{100p}{2}$

$r = 50p$

$\small\mathfrak{\underline{\underline{\blue{r \: is \: 50\% \: of \: principle-}}}}$

Step-by-step explanation:

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