Q:
Which number replaces 'x' in the below figure ?

Answer & Explanation
Answer: B) 9
Explanation: 
Here in 2nd column if you add the individual digits
we get 3 + 7 + 0 =10 , 2 + 2 + 4 = 8 , 7 + 3 + 0 = 10
7 10 3 --> 7+3 =10
6 8 2 --> 6+2 =8
x 10 1 --> x+1 =10
Here we can observe that by adding 1st and 3rd column elements we get 2nd column elements
--> x = 9
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