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Mathematics · Ratio and Proportion

यदि a : b = 7 : 3 है, तो 2a - 4b2a + 4b का मान ज्ञात कीजिए।

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यदि a : b = 7 : 3 है, तो 2a - 4b2a + 4b का मान ज्ञात कीजिए।

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