Question

The ratio of copper & zinc in a alloy is 9:5. If the weight of copper in the alloy is 9.5 gram, find the weight of zinc in the alloy.


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Answer 1

here is Ur answer

Ratio of copper and zinc in alloy=9:5

Weight of copper=48ℊ

Let weight of zinc=x

5

9

=

x

48

9x=5×48

x=

9

240

x=25.5ℊ

∴Weight of zincin the alloy is 25.5ℊ

Answer 2

Let the weight of copper = x kg

Weight of zinc = 9.6 kg

According to question,

9 : 8 = x : 9.6

⇒ 8 × X = 9 × 9.6

⇒ X = 9 × 9.6/ 8 = 9 × 1.2

⇒ 10.8 kg

Weight of cooper in alloy = 10.8 kg