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16 . In an auditorium, the number of rows is equal to the number of chairs in each row. If the capacity of the auditorium is 2025, find the number of chairs in each row.
A. 34 B. 45
C. 52 D. 66

17 . Find the smallest number by which 396 must be multiplied so that the product becomes a perfect square.
A. 11 B. 13
C. 15 D. 17

18 . √.04
A. 0.2 B. 0.7
C. 0.9 D. none of the above

19 . If √256 / √x = 2, then x is equal to ?
A. 54 B. 64
C. 74 D. 84

20 . √288 / √128
A. 9/2 B. 7/2
C. 5/2 D. 3/2




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