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Chain Rule / Mixed proportional are very frequently  questions that comes in  every competitive  exams like   SSC - CGL/ CHSL  RRB - NTPC  ,  UPSC ,   state PSC ,  
In this video  I am discussing the easiest  way to these types  of questions  4 to 5s

(Hindi) Chain Rule / Mixed Proportional Part 2: UPSC CSE

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Chain Rule

Basic Numeracy 

CSAT - Paper II

Basic Numeracy

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Chain Rule

(Hindi) Chain Rule / Mixed Proportional Part 2: UPSC CSE

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