alleryIn 7, 11, 15, 19, ... what is added each time?
A3
B7
C4
D11
Answer & Solution
Correct answer: C. 4
1. 11 - 7 = 4 and 15 - 11 = 4.
2. The same difference each time is 4.
3. So the next term is 23.
_Source: Wikipedia, Arithmetic progression (CC BY-SA 4.0), Arithmetic progression_
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