সরল সুদ || ICDS Special || Simple Interest Math tricks in Bengali ||PARIPURNA STUDY POINT ||
সরল মুনাফার অংক | সুদকষা এর অংক করার সেরা
টেকনিক | sud kosa math | Balin Sir
সুদ-কষা পার্ট-১,,৫ সেকেন্ডে সুদ-কষার অংকের সমাধান,সরল মুনাফার অংক,সেরা টেকনিক,

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