Question

at what rate of simple interest will rupees 350 amount to rupees 455 in 6 years?
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Answer 1

Answer:

12.82%

Step-by-step explanation:

SI=PTR/100

P=455

SI=350

T=6

R=?

from the equation

350=455*6*R/100

350=27.3R

R= 350/27.3

=12.82%

I hope my answer helps you☺☺

Answer 2

Qᴜᴇsᴛɪᴏɴ :

At what rate of simple interest will ₹ 350 amount to ₹ 455 in 6 years ?

Gɪᴠᴇɴ :

Principle = ₹ 350

Amount = ₹ 455

Time = 6 years

Tᴏ ғɪɴᴅ :

Rate of Interest

Sᴏʟᴜᴛɪᴏɴ :

Here, Principle = ₹ 350, Amount = ₹ 455, Time = 6 years

Now :

S.I = Amount - Principle

⇒ S.I = ₹ 455 - ₹ 350 = ₹ 105

⇒ S.I = ₹ 195

Using Formula,

$\begin{lgathered}\bold{Simple \: interest} = \frac{ \text{Principal }\times \text{ Rate} \times \text{Time}}{100}\end{lgathered}</p><p></p><p>$

We get

$105 = \dfrac{350 \times R \times 6}{100}$

$⇒r = \dfrac{105 \times 100}{350 \times 6} =\bold{5\%p.a.}$

∴ The rate of interest is 5 % p.a.

Мσяє ıмρσятαηт ƒσямυℓυє :

⇒ S.I = $\dfrac{P \times R \times T}{100}$

⇒P = $\dfrac{100 \times S.I}{R\times T}$

⇒R = $\dfrac{100 \times S.I}{P \times R}$

⇒T = $\dfrac{100 \times S.I}{p \times R}$