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Find out the missing number from the choices given. 66, 39, 18, __________

Question and options

Find out the missing number from the choices given.

66, 39, 18, __________
  1. 9
  2. 3
  3. 6
  4. 8

Answer and explanation

Correct answer: B - 3
Differences are -27, -21, -15, decreasing by 6 each time; the next difference is -15, so 18 - 15 = 3.

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  • CUSAT CAT LLM

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