SSC CPO 11 Dec 2019 Shift 1 Paper

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Question : 140 of 200
 
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A person invested a sum of Rs. 18,600 at x% p.a and another sum that is twice the former at (x + 2)% p.a., both at simple interest. If the total interest earned on both investments for 312 years is Rs. 23, 110.50, then the rate of interest p.a. on the second investment is:
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