Question

(i) If x is taken as number of rows in original arrangement, which of the
following quadratic equation describe the situation ?
(a) x2 – 20x - 300 = 0 (b) x2 + 20x - 300 = 0 (c) x2 – 20x + 300 = 0
(d) x2 +20 x + 300 =0​

Answer 1

nice question it is...