Question

An amount Of money invested trebled in 6 years .Find the rate of interest earned..​

Answer 1

Answer:

=6% IF RATE = YEAR.

Step-by-step explanation:

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Answer 2

Answer:

33.3% per annum

Step-by-step explanation:

Here,

        Let the principle be Rs "x".

        And the rate of interest be r.

Therefore

    I = (P × R × T)/100

or, 2x = (x × r × 6)/100  [because, amount is 3x, principle is x so interest = 2x]

or, r = 200/6

or, r = 33.3% per annum