HOME > Sample Questions > Core Test > Continuing Numerical Series > Example 6
Continuing Numerical Series - Example 6
Instructions
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
6 18 0 24
-6 30 ?
Degree of difficulty: high
Solution
Brief description of the solution steps:
The row of numbers is created by the following arithmetic operations:
+12 -18 +24 -30 +36 -42. In other words, there are alternate additions (+)
and subtractions (-).
All the numbers that are added or subtracted are multiples
of the number 6 (2 * 6 = 12 3 * 6 = 18 4 * 6 = 24 5 * 6 = 30 6 * 6 = 36 7 * 6 = 42).
The calculations provide the following results: 6 + 12 = 18 18 – 18 = 0 0+24=24 24 - 36 = (-6) (-6) + 36 = 30.
The number that must be entered in the place of the question mark (?) is therefore 30 - 42 = (-12).
On your answer sheet you must therefore mark the "-", the "1" and the "2".
Instructions
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
