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6 1 science and technology books in the corner of class
Solution: Double the number of science and technology books,

The number of science and technology books is 1/2 of story books, so there are twice as many story books available.

To sum up, available science and technology books are:

192÷( 1+2+3)

= 192÷6

=32 (Ben)

Story books are:

32x2=64 (Ben)

Literature books are:

32x3=96 (Ben)