A certain sum amounts to Rs. 7080 in 2 yr andto Rs. 8430 in 4 yr at si – InterviewSolution

1.	A certain sum amounts to Rs. 7080 in 2 yr andto Rs. 8430 in 4 yr at simple interest. Findthe rate of interest.(a) 7%(c) 6%(e) of these(b) 8%(d) 9%
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