Question

if the simple interest is rupees 3000 for 2 years at 10% per annum find the principal amount​

Answer 1

interest = principal*time*rate /100

let principal be x

3000 = x*2*10/100

300000 = 20x

x= 300000/20

x = 15000

therefore principal is 15000/-

Answer 2

Given :

• Simple interest = ₹3000
• Time = 2years
• Rate = 10%

To find :

Principal

Formula used:

I = Prt

Here,

• I = interest
• P = principal
• r = rate
• t = time

Solution :

$\sf \implies \: 3000 \: = \: P \: \times \dfrac{10}{100} \times 2 \\ \\ \sf \implies \: P \: = \: \dfrac{3000 \times {100} }{ {10} \times 2} \\ \\ \sf \implies \: P \: = \: \dfrac{3000 \times {10}}{2}} \\ \\ \sf \implies \: P \: = \: 3000 \times 5 \\ \\ \sf \implies \: P \: = \:15000$

ANSWER :

Principal Amount = ₹15000