Dear friends, let me know answers of the following old UGC questions

1.)As per the staff formulae recommended by Ranganathan in technical section one professional can do    the technical work of howmany books?

        a) 6000        b) 3000     c) 2000     d) 1500

2) A catalogue tray contain ...................... cards

       a) 700           b) 1000      c) 1500     d) 1250

3)The provision of phase relation in DDC was made available from

       a) 14th edition   b) 2nd edition   c) 7th edition   d) 11th edition.