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Type the missing number in this sequence:\newline6969, _____, 7373, 7575, 7777, 7979, 8181

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Full solution

Q. Type the missing number in this sequence:\newline6969, _____, 7373, 7575, 7777, 7979, 8181
  1. Determine Pattern: We need to determine the pattern in the sequence to find the missing number. Let's look at the differences between the known numbers.\newline73−75=−273 - 75 = -2\newline75−77=−275 - 77 = -2\newline77−79=−277 - 79 = -2\newline79−81=−279 - 81 = -2\newlineThe differences between consecutive numbers are consistent, which suggests that the sequence is decreasing by 22 each time.
  2. Apply Pattern: Now let's apply this pattern to find the missing number before 7373. If we add 22 to 7373, we should get the missing number.\newlineMissing number = 73+273 + 2
  3. Perform Calculation: Perform the calculation to find the missing number.\newlineMissing number = 73+2=7573 + 2 = 75

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