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![Abacus Meaning in Hindi - अबेकस क्या है? पूरी जानकारी [फ्री PDF 2025]](https://www.solutioninhindi.com/wp-content/uploads/2020/04/abacus-kya-hai-300x171.jpg "Abacus Meaning in Hindi - अबेकस क्या है? पूरी जानकारी [फ्री PDF 2025]")
