RE: Maths Brain Teasers 84:: Can you Find the Missing Number???
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The answer is "9/2"
Reason
Check the symmetry. Multiply the second digit with the number in bracket.
63 (2) 56 3 x 2 = 6
34 (2) 38 4 x 2 = 8
71 (9) 79 1 x 9 = 9
82 (?) 69 2 x 9/2 = 9
Hence the answer is 9/2
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