If the simple interest rate is 5%p.a. , how long does it take for the amount to become twice the principal

Mathematics

1 answer:

solong [7]3 years ago

3 0

A = P + I
2a = a + PTR/100
2a = a + 5aT/100
2a = a(1+T/20)
2=1+T/20
T=20 yrs

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