Select the number from among the given options that can replace the question mark (?) in the following series.
552, ?, 650, 702, 756

Let's find the differences between consecutive terms at the end of the series:
756−702=54

702−650=52

We see that the difference is decreasing by 2 as we move left (54,52,…).
Following this pattern, the previous differences should be 50 and 48.

Let's test this:

Term
3
​
−Term
2
​
=50⟹650−50=600

Term
2
​
−Term
1
​
=48⟹600−48=552

This perfectly matches the first term (552). Therefore, the missing number is 600.