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Answered

1: Find the next three terms in each item below.
1. 5, 7, 9, 11, _, _, _
2. 15, 18, 21, 24, _, _, _
3. 3, 8, 18, 38, _, _, _
4. 7, 10, 13, 16, _, _, _
5. 18, 27, 36, 45, _, _, _​

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1: Find the next three terms in each item below.

ANSWER AND SOLUTION

1. 5, 7, 9, 11, 13, 15, 17

add (+2)

  • 5 + 2 = 7
  • 7 + 2 = 9
  • 9 + 2 = 11
  • 11 + 2 = (13)
  • 13 + 2 = (15)
  • 15 + 2 = (17)

2. 15, 18, 21, 24, 27,30,33

add (+3)

  • 15 + 3 = 18
  • 18 + 3 = 21
  • 21 + 3 = 24
  • 24 + 3 = (27)
  • 27 + 3 = (30)
  • 30 + 3 = (33)

3. 3, 8, 18, 38,78,158,318

add (+5 × 6)

  • 3 + 5 = 8
  • 8 + 10 = 18
  • 18 + 10 = 38
  • 38 + 40 = (78)
  • 78 + 80 = (158)
  • 158 + 160 = (318)

4. 7, 10, 13, 16,19,22,25

add (+3)

  • 7 + 3 = 10
  • 10 + 3 = 13
  • 13 + 3 = 16
  • 16 + 3 = (19)
  • 19 + 3 = (22)
  • 22 + 3 = (25)

5. 18, 27, 36, 45,54,63,72

add (+9)

  • 18 + 9 = 27
  • 27 + 9 = 36
  • 36 + 9 = 45
  • 45 + 9 = (54)
  • 54 + 9 = (63)
  • 63 + 9 = (72)

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