Question
Ravi invested ₹P in a compound interest scheme at an annual interest rate of r% for 1 year. Meanwhile, Kriti invested ₹2P in a simple interest scheme at an annual interest rate of 2r% for 2 years. The ratio of the total amount received by Ravi (principal + interest) to the simple interest earned by Kriti is 3:4. Find the value of r.
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