Question
Calculate the value of 'a' if 'P' initially had Rs. 'a'
and invested 45% of this amount in a PF A with a simple interest rate of 35% per annum and the rest in a PF B with a compound interest rate of 30% per annum (compounded annually). After 2 years, 'P' received a total interest of Rs. 3333.6 from both PFs.Solution
According to question; (0.45 × 0.35 × a × 2) + (0.55 × 0.69 × a) = 3333.6 0.315a + 0.3795a = 3333.6 0.6945a = 3333.6 a = 4800
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