Question

Rs 540 is earned as a interest of rs 18000 for 3 years find the rate of interest

Answer 1

Let x be the amount.

Let x be the amount.Then simple interest for 3 years, at the rate n%, = x * n * 3/100 = ₹540

Let x be the amount.Then simple interest for 3 years, at the rate n%, = x * n * 3/100 = ₹540Simple interest for one year = ₹180

Let x be the amount.Then simple interest for 3 years, at the rate n%, = x * n * 3/100 = ₹540Simple interest for one year = ₹180Simple interest for two years = ₹360

Let x be the amount.Then simple interest for 3 years, at the rate n%, = x * n * 3/100 = ₹540Simple interest for one year = ₹180Simple interest for two years = ₹360Compound interest for two years = x( 1 + n/100)^2 - x = ₹376.20

Let x be the amount.Then simple interest for 3 years, at the rate n%, = x * n * 3/100 = ₹540Simple interest for one year = ₹180Simple interest for two years = ₹360Compound interest for two years = x( 1 + n/100)^2 - x = ₹376.20Hence the additional interest for the second year = 376.20 - 360 = ₹16.20

Let x be the amount.Then simple interest for 3 years, at the rate n%, = x * n * 3/100 = ₹540Simple interest for one year = ₹180Simple interest for two years = ₹360Compound interest for two years = x( 1 + n/100)^2 - x = ₹376.20Hence the additional interest for the second year = 376.20 - 360 = ₹16.20Hence the rate of interest = 16.20/180 * 100 = 9

Let x be the amount.Then simple interest for 3 years, at the rate n%, = x * n * 3/100 = ₹540Simple interest for one year = ₹180Simple interest for two years = ₹360Compound interest for two years = x( 1 + n/100)^2 - x = ₹376.20Hence the additional interest for the second year = 376.20 - 360 = ₹16.20Hence the rate of interest = 16.20/180 * 100 = 9So, the principal amount = 180/9 * 100 = ₹2000

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Answer 2

Answer:

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Step-by-step explanation:

ANSWER ::

Principal = P = 18000 Rs

Interest = I = 540 Rs

Time = T = 3 years

Let Rate of interest = R %

We know that

I = PRT /100

540 = 18000×R ×3 /100

R = 54000/54000

R = 1

So the rate of interest = 1%