Answer:
The number is - 19.
Step-by-step explanation:
Note that the distance between - 10 and - 4 = | -10 - (-4)| = | -6|
= 6 units
That means the distance between -4 and the line to its immediate left is 3 units.
So, proceeding this way, - 4 - 3 = - 7
- 7 - 3 = - 10
- 10 - 3 = - 13
- 13 - 3 = - 16
- 16 - 3 = - 19 which is third to the left of - 10.
Hence, the number should be - 19.
