Railway তে বারবার রিপিট হয় এই দশটা অংক | Compound Interest 01 | Youth Math Book Solve

pdf: https://drive.google.com/file/d/1K-UnFlbY0KvJyud59DE_bV58fFiHY6Mp/view?usp=drivesdk

all NTPC CBT 2 /RRC GROUP D math Class: https://www.youtube.com/playlist?list=PL_UuCY7F0pcH1Or4iTs-z1dksbU-wtfj9

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