A) 960
B) 628
C) 830
D) 492
E) None of these
Correct Answer: C
Solution :
Explanation Option [c] is correct. The number in the centre is the product of all the 4 numbers minus 10, i.e., \[(3\times ~5\times ~2\times ~6)-10=170;(8~\times 1~\times \,4~\times \,9)-10=278\] Similarly, \[(10~\times \,6~\times \,\,7~\times \,2)-10=830\]
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