Explanation:

Let’s break it down and see what’s going on with this number series:

60, 80, 120, 180, 240, 360

- First off, always start by checking the pattern.

- If you look closely:

- 60 × 1.33 = 80

- 80 × 1.5 = 120

- 120 × 1.5 = 180

- 180 × 1.33 = 240

- 240 × 1.5 = 360

- But these multipliers (1.33, then 1.5, repeat) seem odd.

- Let’s try checking for a clean pattern.

- Notice this: if the sequence doubled each every other step, you’d see 60, 120, 240, 480. But that’s not happening.

- Now, look at another possible pattern: Multiplying by 1.5 each time gets:

- 60 × 1.5 = 90

- 90 × 1.5 = 135...

- Not matching either.

- If we try to check differences:

- 80 - 60 = 20

- 120 - 80 = 40

- 180 - 120 = 60

- 240 - 180 = 60

- 360 - 240 = 120

- See how the jump from 120 to 180 and 180 to 240 is the same (60), but after that, it doubles? This feels off.

- So the real oddball is 240. Removing 240 from the sequence gives a smoother, more logical progression.

Option:2—240