Answer: d. D
First a 6-sided figure encloses (6-1=)5-sided figure.
Then a 5-sided figure encloses (5-1=)4-sided figure.
The answer must be a 3-sided figure enclosing a 2-sided figure. So answer figure D should be next. So, answer is option D
Answer: b. A
The triangle shifts one place clockwise and also inverts every time it shifts. That gives options A and B.
The dark circle shifts anti-clockwise so now it will be below. So answer figure (a) is correct. So, Option b is correct answer.
Answer: c. B
The shaded and light parts of each circle inverse (interchange) to give us the 2nd diagram. Then both circles on right side simply change positions with left side circles without inversion of shaded parts. Now again the shaded and light parts of each circle inverse their positions. Again, circles on right should exchange positions with circles with left without inversion. So, answer figure (b) is correct. So, answer is option c
Answer: d. A
Answer figure (a) is correct option. So, answer is Option D
See the third row. First box has 2 circles & 0 triangles, 2nd has 1 circle (decrease by 1) & 1 triangle (increase by 1). So 3rd box must have 0 circles ad 2 triangles.
Same pattern is followed in all rows. You solve this by taking columns instead of rows too.