Q4 (2015) Consider the following matrix: 3 8 10 2 ? 1;6 56 90 2 20 0 What is the missing number at ?

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Q4 (2015) Consider the following matrix :
3 8 10 2 ? 1
6 56 90 2 20 0
What is the missing number at ? in the matrix ?

UPSC Civil Service (Preliminary) 2015 - GS2 - CSAT
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