Question

At what rate per cent per annum will ₹3600 amount to ₹4734 in 3 1/2 years?​

Answer 1

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If  it is Simple interest then,

(Principle * rate of interest * year)/100  + principle  = Amount

(3600 * r * 3.5)/100 + 3600 = 4734

(3600 * r * 3.5)/100 = 4734 - 3600

(3600 * r * 3.5)/100 = 1134

 r =  (1134 * 100)

       -----------------

r =  3600 * 3.5

r = 9 %

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