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An alloy of 9 ct gold contains gold, copper zinc and silver in the ratio 9: 12.5: 2.5. (a) Express this ratio in simplest form. (b) How much silver would you need if your alloy contained six grams of pure gold? (c) How much copper zinc would you need to make a 9 ct alloy using three grams of pure gold?

An alloy of 9 ct gold contains gold, copper zinc and silver in the ratio 9: 12.5: 2.5. (a) Express this ratio in simplest form. (b) How much silver would you need if your alloy contained six grams of pure gold? (c) How much copper zinc would you need to make a 9 ct alloy using three grams of pure gold?

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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An alloy of 9 ct gold contains gold, copper zinc and silver in the ratio 9: 12.5: 2.5. (a) Express this ratio in simplest form. (b) How much silver would you need if your alloy contained six grams of pure gold? (c) How much pure gold? copper zinc would you need to make a 9 ct alloy using three grams of
Transcribed Image Text:An alloy of 9 ct gold contains gold, copper zinc and silver in the ratio 9: 12.5: 2.5. (a) Express this ratio in simplest form. (b) How much silver would you need if your alloy contained six grams of pure gold? (c) How much pure gold? copper zinc would you need to make a 9 ct alloy using three grams of
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