if the simple interst on a sum for a years at 12+1/2% per annum is 510 the simple interest on the same sum at the same rate for the period of time is
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Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. A similar process, weathering, breaks down or dissolves rock, but does not involve movement. ... Most erosion is performed by liquid water, wind, or ice (usually in the form of a glacier).
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Rate \%= 1212%=18=9→Amt.8→Pri.
According to the question,
17 units = Rs. 510
1 unit = Rs. 30
64 units = Rs. 30×64= Rs. 1920
Hence principal = R5. 1920
SI for 2 years
= 1212×2=25 %
Required SI = 1920×25100=Rs.480
Hence, Required SI = Rs.480
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