Question

A sum of Rs. 'y' is split into two parts in the ratio 3 : 2. The larger part is invested at 20% p.a. simple interest for 2 years and the smaller part is invested at 10% p.a. compound interest, compounded annually for 2 years. If the total interest earned from both parts combined is Rs. 3240, then find the value of 'y'?

A Rs. 8000
B Rs. 10000
C Rs. 12000
D Rs. 15000
E None of these
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