RRB NTPC 2019 – NTPC का महायुद्ध – Maths – Ratio & Proportion – अनुपात और समानुपात

RRB NTPC 2019, Hello students , welcome to adda247 , in this video we discuss about maths questions that are important for railway ntpc exam 2019 . if you are preparing for rrb ntpc this video help you to prepare maths for railway ntpc exam 2019

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