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Ratio and Proportion
Zinc and copper are melted together in the ratio 9 : 11. What is the weight of melted mixture, if 28.8 kg of zinc has been consumed in it?
1. 58 kg
2. 80 kg
3. 64 kg
4. 90 kg
Read Solution (Total 2)
-
- given ratio is 9:11
weight of zinc is also given as 28.8
then from ratio9:11,we get,(9/20)*X=28.8
X=(28.8*20)/9
=64KG - 10 years agoHelpfull: Yes(9) No(1)
- 28.8x/y=9/11
9y=316.8
y=35.2
so by adding weight of zinc and copper: 28.8 + 35.2 =64 - 11 years agoHelpfull: Yes(7) No(2)
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