Question

2, __, 6, 8, __, 12.
Which two numbers should be there in the blanks respectively?

• A. 10 and 4
• B. 3 and 9
• C. 4 and 10
• D. 9 and 3

Answer 1

The correct option is C 4 and 10

The sequence is: 2, __, 6, 8, __, 10

We can observe that if we follow the multiplication table of 2, we can fill in the blanks.
2 × 1 = 2
2 × 2 = 4
2 × 3 = 6
2 × 4 = 8
2 × 5 = 10
2 × 6 = 12

So, the blanks will have 4 and 10 respectively.