Answer :

Let Zeba’s present age be x.

According to question,

⇒ (x - 5)^{2} = 5x + 11

⇒ x^{2} - 10x + 25 = 5x + 11

**∴** x^{2} - 15x + 14 = 0

By using the quadratic formula,

**∴** Zeba’s age is **14.** (***** x – 5 = -4 and age cannot be negative.)

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