Others Maths Puzzle

29102012=1
11041342=3
18084234=1
05011000=7
14125674=5
07040002=1
31051743=5
20091976=?

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Others Other Question

If the cost of pins reduces by rs 4 per dozen,12 more pins can be purchased for rs 48.The cost of pins per dozen after reduction is? can any one suggest sites for ADP placement papers