 
<translate> Ọ bụrụ na Rehana dị afọ 25 ugbu a, ọ ga-adị afọ 25+5=30 n'ime afọ ise. Rehana ga-adị okpukpu atọ karịa Phoebe n'ime afọ ise, nke pụtara na Phoebe ga-adị afọ 30 / 3 = afọ 10 n'ime afọ ise. Ugbu a, Phoebe dị afọ 10 - 5 = afọ 5. 3 / 5 afọ Phoebe dị ugbu a bụ 3 / 5 * 5 = afọ 3, nke bụ afọ ndụ Jekọb. N'ihi ya, azịza ya bụ 3. <eng> If Rehana is currently 25 years old, she will be 25 + 5 = 30 in five years. Rehana will be three times as old as Phoebe in five years, meaning Phoebe will be 30 / 3 = 10 years old in five years. Currently, Phoebe is 10 - 5 = 5 years old. 3 / 5 of Phoebe's age now is 3 / 5 * 5 = 3 years, which is Jacob's age.
Therefore, the answer is 3. 