Answers

2014-10-06T20:38:02+05:30
Bettter to practice with RD Sharma..................
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2014-10-06T20:38:47+05:30
It depends upon the board u are following
if u are in icse board........selina publishers, ml agarwal..this shld help
cbse..........RD Sharma
Wbse.........Amitava mitra
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