Question

Ratio between capital lent for 2 year compounded annually and for 4
year at simple interest is 6 : 5. If the interest obtained after given time is
equal thon find rate of interest?​

Answer 1

Answer:

Let the principal is Rs.x and rate of interest is r% p.a.

Amount for two years (under C.I.)= x.(1+r/100)^2 ……………..………(1)

Amount for one year(under S.I.)= x.[1+ r.1/100]…………………(2). , accordingly :-

x.(1+r/100)^2/x.(1+r/100) = 6/5.

or, 1+r/100=6/5.

or, r/100=6/5–1.= 1/5.

or, r = 100×(1/5) = 20%. Answer.

Step-by-step explanation:

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