In the following question, select the missing number from the given series.
17, 27, 37, 47, 57, 67, ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1, i.e., 77.
17 + 10 = 27, 27 + 10 = 37, 37 + 10 = 47, 47 + 10 = 57, 57 + 10 = 67, 67 + 10 = 77