25 लीटर नमक के एक घोल में नमक – McqOptions

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1.	25 लीटर नमक के एक घोल में नमक की मात्रा 6% है \| तद्नुसार उस घोल में कितना पानी और मिला दिया जाए कि नमक की मात्रा 5% हो जाए ?
A.	5
B.	7
C.	9
D.	4
Answer» B. 7

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