Question

Following the pattern shown in the figure, identify the number which can fill the blank space.

Answer 1

Observing the pattern shown,
1 + 3 = 2 $\times$ 2
1 + 3 + 5 = 3 $\times$ 3
Similarly, 1 + 3 + 5 + 7 = 4 $\times$ 4
$\therefore$ The number which can appropriately fill the blank space is 4.