Question
Which of the following numbers will replace the question
mark (?) in the given series? 53, 62, 57, ?, 61, 70, 65Solution
Alternate series: 53 + 4 = 57; 57 + 4 = 61; 61 + 4 = 65 62 + 4 = 66; 66 + 4 = 70
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