5,6,9,15,?,40 a)25 b)33 c)27 d)21

explain this

• Manikandasubbiah
• 9145 Views
• 65 Answers

• 25

  • Vishal
  • 28 Aug
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• 25

  • Abhishek
  • 27 Aug
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• 25

  • Manish
  • 23 Aug
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• First difference 1 second difference 3(1+'2') third difference 6(3+'3') 4th difference (6+'4')=10 that is 15 + 10(4th difference)=25

  • Aman
  • 23 Aug
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  1

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• 25

  • Shilpa
  • 22 Aug
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• c

  • Puluthi
  • 22 Aug
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• 27

  • Harish
  • 21 Aug
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• 33

  • Abhijeet
  • 21 Aug
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• 25

  • Nikita
  • 21 Aug
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• 25 bcz all number take difference with increase with one

  • Himanshu
  • 18 Aug
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• a

  • Mounika
  • 13 Aug
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• a

  • Thesika
  • 10 Aug
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• 'B' . 5 +1 6. +2 +3 9. +3 +6 15. +4 +10 25. +5 +15 40

  • Dhulla
  • 08 Aug
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• 25

  • Smruti
  • 29 Jul
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• a

  • Parag
  • 29 Jul
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• 25

  • Rahul
  • 29 Jul
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• 21

  • Mansi
  • 29 Jul
  • 0 Comment

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• 25 is the answer.the terms in the series are increasing as 1, 3, 6, 10, 15; and these increments themselves are increasing as 2, 3, 4, 5.

  • Meghana
  • 24 Jul
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• 23

  • Pooja
  • 23 Jul
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• A

  • Chinu
  • 23 Jul
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