Question

At what percentage rate of interest ₹ 450 will be ₹ 504 in 3 years

Answer 1

hey dear.......


your answer is here..................



We know that a = p + prt/100 => 504 = 450 + 450 * r * 3/100 => 504 = 450 + 1350r/100 => 504 = 450 + 13.5r => 13.5r = 54 => r = 54/13.5,r = 4
Now according to your question our new principal is 615 and time = 2.5 yrs.then the amount = p + prt/100 => 615 + 615 * 4 * 2.5/100 => 615 + 61.5 = ₹676.5

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hope its help you ❕❕