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To find Time when Principal Interest and Rate are given
To find Time when Principal Interest and Rate are given the rules are.
Interest = (Principal × Rate × Time)/100 Time = (100 × Interest)/(Principal × Rate) Examples to find Time (T) when Principal (P), Interest (I) and Rate (R) are given: 1. Find Time when, Principal = $ 1500; Interest = $ 450; Rate = 5% p.a. Solution: Principal = $ 1500, Interest = $ 450, Rate = 5% p.a. Time = (100 × Interest)/(Principal × Rate) = (100 × 450)/(1500 × 5) = 45000/7500 = 6. Therefore, Time (T) = 6 years. 2. Find Time when, Principal = $ 2000; Interest = $ 600; Rate = 3% p.a. Solution: Principal = $ 2000, Interest = $ 600, Rate = 3% p.a. Time = (100 × Interest)/(Principal × Rate) = (100 × 600)/(2000 × 3) = 60000/6000 = 10 Therefore, Time (T) = 10 years. 3. Find Time when, Principal = $ 3500; Interest = $ 700; Rate = 4% p.a. Solution: Principal = $ 3500, Interest = $ 700, Rate = 4% p.a. Time = (100 × Interest)/(Principal × Rate) = (100 × 700)/(3500 × 4) = 70000/14000 = 5 Therefore, Time (T) = 5 years. Related Links : ● Simple Interest.
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