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20 kg of a mixture of wheat and husk contains 5% husk. How many kg more of husk must be added to make the husk content 20% in the new mixture?1). 2.752). 3.753). 4.754). 5.75 |
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Answer» GIVEN, Husk in 20 KG of mixture = 5% of 20 = 1 kg Let x kg husk is been ADDED According to the question, ⇒ 1 + x = 20% of (20 + x) ⇒ 1 + x = (1/5) × (20 + x) ⇒ 5 + 5x = 20 + x ⇒ 4x = 15 ⇒ x = 15/4 = 3.75 ∴ 3.75 kg of husk has been added |
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