Trao121 Trao121

28-02-2024
Mathematics

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A certain sum amounts to Rs. 720 in 2 years and to Rs. 1020 after 7 years at simple interest. Find the sum and the rate of interest p.a?
a) Rs. 800, 8%
b) Rs. 600, 10%
c) Rs. 700, 7%
d) Rs. 500, 10%

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