Directions: Select the number that will complete the given series.

Identify the value of the missing term (?) in the sequence below.

4.8, 8.3, ?, 18.3, 24.8

The correct option is 12.8.

To find the missing term in the sequence, let us analyze the difference between consecutive terms:

$8.3-4.8=3.5$

$24.8-18.3=6.5$

We can observe that the difference between successive terms increases by 1.0 at each step. Therefore, the sequence of differences is 3.5, 4.5, 5.5, and 6.5.

Now, let us calculate the missing term by adding 4.5 to the second term (8.3):

$8.3+4.5=12.8$

To verify, we add 5.5 to 12.8 to check if it equals the next term (18.3):

$12.8+5.5=18.3$

The pattern holds true, confirming that the missing term is 12.8.