The solution according to exercise 4.1 class 10 Maths NCERT solutions is as follows:Let age of Zeba be x yearsAs per the question:(x − 5)2 = 11 + 5x(x − 5)2 = 11 + 5x=> x2 + 25 − 10x = 11 + 5x(x)2 + 25 − 10x = 11 + 5x=> x2 − 15x + 14 = 0 x 2 − 15x + 14 = 0 x 2 − 14x − x + 14 = 0 x 2 − 14x − x + 14 = 0=> (x - 1)(x - 14)Therefore, age of Zeba is 14 years.