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Which number will replace the question mark (?) in the following series?
27, 32, 42, 62, ?, 182

  1. A
    102
  2. B
    116
  3. C
    95
  4. D
    134

Solution & Step-by-step Explanation

Let's find the difference between consecutive numbers in the series:
32−27=5

42−32=10

62−42=20

The differences are doubling at each step: 5,10,20,…
Following this logic, the next differences should be:

20×2=40

40×2=80

So, the missing number is:

62+40=102
Let's verify with the next term:

102+80=182
This matches the final term. Thus, the correct number is 102.

Practice this question

Try it yourself before checking the explanation above.

Which number will replace the question mark (?) in the following series?
27, 32, 42, 62, ?, 182
A
102
B
116
C
95
D
134

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