| Direction: Complete the series by choosing the correct option. |
| 120, 99, 80, 63, 48,? |
A) 35
B) 38
C) 39
D) 40
Correct Answer: A
Solution :
On the basis of the information given in the questions, we find that C and D can take three positions as shown in the diagram following the restriction that C and D cannot be together.
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