Question

Find the missing number in the ratio table below.

11 22 33 44
9 18 27 ?
A.
37
B.
38
C.
35
D.
36

Answer 1

To find the missing number in the ratio table, we can first observe the relationship between the numbers in the first row and the second row.

The numbers in the first row are multiplied by a certain factor to get the numbers in the second row.

- 11 × 2 = 22
- 22 × 2 = 44
- 33 × 2 = 66
- 9 × 2 = 18
- 18 × 2 = 36
- 27 × 2 = 54

It seems that the second row numbers are obtained by multiplying the first row numbers by 2 as well, but the corresponding missing element appears to be calculated by maintaining a similar multiplying factor.

Let's check further:

Each number in the second row corresponds to two times the number just before it:
- The factor for the first column is 1 (9), and it becomes 2•1=2, thus 9 → 18.
- The factor for the second column is 2 (18), and it becomes 2•2=4, thus 18 → 27.

So, we notice that as the index goes from one to four, values from columns seem to maintain a pattern which can be reflected in the corresponding entry.

Trying from integer 36, you can see right away:

- 9 (2), 18 (2•2), 27 (3), thus checks out for 36; hence 36 is the logical value, without breaking the pattern.

Thus, the missing number in the table is:

D. 36