Answer :

Case 1:


Interest = Amount – Principal


Interest = 2360 – 2000 = Rs. 360


P = Rs. 2000, R = ?, t = 3, I = Rs. 360


As we know,





R = 6


Case 2:


Interest = Amount – Principal


Interest = 2480 – 2000 = Rs. 480


As we know,





r = 8


Hence, the ratio of the rate of simple interest per annum in bank to the post office




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