Question

Which of the following numbers can be shown as squares when arranged in elementary shapes made up of dots?

• A.
  2
• B.
  4
• C.
  6
• D.
  9

Answer 1

Answer: (B), (D)

The correct options are
B
4
D

9
Whole numbers can be shown in elementary shapes made up of dots.
Every number can be arranged as a line. Some numbers can be shown as rectangle. For example, 6 can be shown as
$\circ \circ \circ$
$\circ \circ \circ$
All the square numbers i.e. 4, 9, 16, 25 and so on can be arranged as squares.

4 can be shown as
$\circ \circ \circ \circ$

9 can be shown as
$\circ \circ \circ$
$\circ \circ \circ$
$\circ \circ \circ$