Puzzles Questions

15. What continues the above sequence?
 
Answer
B.
The large arc moves 90deg counterclockwise at each stage. The middle arc moves 90deg clockwise at each stage. The inner arc moves 90deg clockwise at each stage.

16. The average of three numbers is 29. The average of two of these numbers is 38. What is the third number?
Answer
11
3 numbers 29 x 3 = 87 total
2 numbers 38 x 2 = 76 total
The third number must therefore be 87 – 76 = 11.
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