Logic Puzzles Questions and Answers

19. What two digit number should replace the question mark?
  What is the next number?
Answer
Ans = 24.
Looking across and down, the final number in each row and column is the sum of the first three numbers.
20. What number should replace the question mark?
  What is the next number?
Answer
Ans = 4.
(4 x 16) / (2 x 8)
123456789101112131415


161718192021222324252627282930


31323334353637383940

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