There are 345 red balloons and 335 yellow balloons. Amit mixes them together and divides them into groups of 8. How many groups of balloons are there?
No the correct answer is d.When you will tilt the second figure you willsee a perpendicular line
the answer should be C. the figure D has two perpendicular lines so it at least has one perpendicular line unlike others.
It clearly states that "at least one perpendicular line", which means 2 will also be correct.