Discussion
Identify the next number in the series :
13, 35, 57, 79, __________.
Answer: A
The next number is 101.
Each term is 22 more than the one before: 35 - 13 = 22, 57 - 35 = 22 and 79 - 57 = 22. So the next term is \(79 + 22 = 101\).
The other options read the terms as pairs of digits and try to continue the digit pattern, but none of them is 22 more than 79, so they break the series.
Checking the difference between consecutive terms is always the first step with a number series; here it is constant, so the series is arithmetic.
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