Question

Principal =64O .AMOUNT= 744.40 Year = 2 Compoundly .find rate of interest.​

Answer 1

ans us 10%

Step-by-step explanation:

Given: P= 640, A= 774.40, n=2 years, r=?

We know, A=P(1+100r)n

                ∴774.40=640(1+100r)2

                640774.40=(1+100r)2

                6400077440=(1+100r)2

                100121=(1+100r)2

                (1011)2=(1+100r)2

                1011=1+100r

                =10%

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