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In the AP 1, 4, 7, 10, the common difference is:

A1
B4
C7
D3
Answer & Solution
Correct answer: D. 3
1. Subtract each term from the one after it. 2. 4 minus 1 is 3 and 7 minus 4 is also 3. 3. So the common difference is 3. 4. The answer is 3. _Source: syllabus Mathematics, Ch 8 'Predicting What Comes Next: Exploring Sequences and Progressions'_
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