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Simple Interest
Q1.
A sum of 10000 is lent out in two parts, one at 7% simple interest and the other at 12% simple interest. If the annual interest is 900, the sum lent at 12% is:
Q2.
900 is lent at a certain rate of simple interest. After 9 months, another 600 is lent at a rate that is 1.5 times the original rate. If the total simple interest after 1 year is 72, find the original rate.