Question

If 12000 rupees become 12480 rupees after 2 years at a certain rate of interest find the rate of interest by brainly​

Answer 1

Answer:

i= prt/100

r= 100xi/pt

=100x480/12000x2

=480/120x2

=2%

Answer 2

Answer:

Interest = 2%

Step-by-step explanation:

$simple \: interest = \frac{principal \times rate \times time}{100}$

Given that

Principal =12000

Amount=12480

Time=2

To find

Rate=?

Solution

I= Amount-Principal

12480-12000

480

Putting value in the formula

$480 = \frac {12000 \times 2 \times r}{100}$

$480 = \frac{24000 \times r}{100}$

$480 \times 100 = 24000r$

$48000 = 24000r$

$\frac{48000}{24000} = r$

$2\% = r$

The rate of interest is 2%.