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### Question Asked by a Student from EXXAMM.com Team

** Q 1423234141. ** What is the rate of interest p.c.p.a.? I. An amount doubles itself in 5 years on simple interest.

II. Difference between the compound interest and the simple interest earned on a certain amount in 2 years is Rs. 400.

III. Simple interest earned per annum is Rs. 2000.