Question

In what time will the simple interest on a certain sum be three-fourth of the principal 6% per annum

Answer 1

Let the principal be 100 ...(P)
then interest = ¾*100 = 75 ...(I)
rate = 6% ...(R)
Let the time be "X"

I = (P*R*T)/100 ... {Simple Interest Formula}
Substituting values of interest, principal and rate, we get
=> 75 = (100*6*X)/100
=> 7500 = 600*X
=> X = 7500/600
Therefore,
X = 12.5 year or 12 years and 6 months

Answer 2

Answer:

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