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Lesson 1 :RRB: Most Imp Ques (In Hindi)
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This lesson 1 consists Most Imp Ques of science for Railway group "D" . This lesson is very useful to all Railway Exams, SSC ,CDS, CPO,CGL, MTS,CHSL and Govt Exams preparations.

Ashok Kumar Prajapati
Founder of Maths N More, Exp.of 26 years in teaching Maths. Social Worker Spz in CDS, NDA ,SSC CGL,Railway, 10 & 12 MATH ICSE, IGCSE

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2.5% of GDP by 2025 not 2015....
nitrous oxide- NO not n2s
But Sir! Isn't friction also a contact force?
sir total kitney mcq hai ye course mein?
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