An alloy is to contain copper and zinc in the ratio 9 :4. The zinc required (in kg) to be melted with 24 kg of copper, is

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Solution

The correct option is A

$9 : 4 = 24 : x$

$\Rightarrow 9 x = 4 \times 24$

$\Rightarrow x = \frac{4 \times 24}{9} = \frac{32}{3} k g .$

$H e n c e 10 \frac{2}{3}$ .

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An alloy is to contain copper and zinc in the ratio 9 :4. The zinc required (in kg) to be melted with 24 kg of copper, is

The correct option is A 9:4=24:x ⇒9x=4×24 ⇒x=4×249=323kg. Hence 1023.

The correct option is A

$9 : 4 = 24 : x$

$\Rightarrow 9 x = 4 \times 24$

$\Rightarrow x = \frac{4 \times 24}{9} = \frac{32}{3} k g .$

$H e n c e 10 \frac{2}{3}$ .