In certain years a sum of money is doubled to itself at the rate 25% simple interest per annum, then find the time.
Answer & explanation
Correct answer: option 4
ATQ
P : A : S.I.
1 : 2 : 1
⇒ S.I. = \(\frac{PRT}{100}\)
⇒ 1 = \(\frac{1 × 25 × T}{100}\)
⇒ T = 4 years