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22 June, 01:45

Find the missing number:

1,?, 9, 16, 25

+2
Answers (2)
  1. 22 June, 02:36
    0
    4

    Step-by-step explanation:

    (1) ² = 1

    (2) ² = 4

    (3) ² = 9

    (4) ² = 16

    (5) ² = 25
  2. 22 June, 03:18
    0
    The answer is 4

    Step-by-step explanation:

    The missing number is 4

    Looking at the sequence it represent perfect squares

    1 * 1 = 1

    3 * 3 = 9

    4 * 4 = 16

    5 * 5 = 25

    The formula is therefore n²

    Here n = 2, n² = 2² = 2 * 2 = 4
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