Thought process.

1. • The fig shows 4 squares-A,B,C&D.
4 SQUARES • 1/4th of squares A,B&C is shaded.
1. Divide Unshaded portion of ‘A’
into
TWO equal & identical parts.
2. Divide Unshaded portion of ‘B’
into
3. Divide Unshaded identicalof ‘C’
THREE equal & portion parts.
into
Clues :
FOUR equal & identical parts.
The solution is not in the form of
triangles.
The solution lies in the problem itself.
4. Divide ‘D’ into SEVEN equal & identical parts.
Clues :
This was done in world record
The solution is not in the form of triangles.
time of 7 sec.