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Select the option that can replace the question mark (?) in the second row.Row1: 5, 6, 2, 4, 81Row2: 1, 3, 2, 4, ?Row3: 2, 3, 1, 5, 391. 302. 523. 404. 73 |
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Answer» Correct Answer - Option 1 : 30 The logic follows here is : Sum of squares of first four numbers = Fifth number(In a row). Row 1 : 5, 6, 2, 4, 81 52+ 62+ 22+ 42= 25 + 36 + 4 + 16 = 81. Row 2 : 1, 3, 2, 4, ? ? = 12+ 32+ 22+ 42 ? = 1 + 9 + 4 + 16 ? = 30. Row 3 : 2, 3, 1, 5, 39. 22+ 32+ 12+ 52= 4 + 9 + 1 + 25 = 39. Hence, the correct answer is"30". |
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