What information is missing but is needed to solve this problem? The Jackson family took a three-day trip. They drove 426 miles the first day and 387 miles the third day. How many miles did they drive on the second day? A. the total number of miles driven for the first and third days B. the difference between the number of miles driven on the first and third days C. the total number of miles driven for the three days D. the average number of miles driven on the first and third days

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C. the total number of miles driven for the three days

Step-by-step explanation:

You are given two bits of unrelated information (miles driven on Day 1 and on Day 3). You are asked for a third bit of information (miles driven on Day 2).

Missing is a relationship between the given bits of information and the desired bit of information. That relationship could take any of many possible forms:

the sum or difference of the miles driven on the first two days the sum or difference of the miles driven on the last two days the sum of the given miles driven and the unknown miles driven (the total miles driven) the difference of the given miles driven and the unknown miles driven averages (instead of sums) for any of the combinations mentioned above ...

Of the possibilities listed above, the one that appears in the answer choices is ...

the total miles driven.

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About the other answer choices

Any relationship between only the given two numbers will not tell you anything about the unknown third number.

Answer: C

You need the total to answer the question, therefore C is the missing information