Question

please tell right answer​

Answer 1

Answer:

lets consider side length of 1 square = 1

then side length of the larger square = 10

so total area = 100

area of part excluding outer shaded portion = 8×8 = 64

area of outer shaded portion = 100 -64 = 36

similarly area of portion excluding outer unshaded portion = 6× 6 = 36

area of outer unshaded portion = 64-36=28

similarly

area of inner shaded region = 20

area of unshaded inner region = 12

so % of unshaded region = (28+12) ×100/100= 40%