Question

Shubhi saw a beautiful ring which was made of Electrum. Electrum is an alloy of gold and silver with a small amount of other metals and is white in colour.
The ratio of gold and silver in a sample of electrum is 9:7.If the weight of the silver in that sample of alloy is 9.8 kg. Then, what is the weight of the gold in the alloy?
a) 11.2 kg
b) 8.8 kg
c) 10.5 kg
d) 12.6 kg .​

Answer 1

Answer:

The answer is option d) 12.6 kg

Explanation:

As given in the question the ratio of gold and and silver is respectively 9:7 ; which means that if you divide the weight of Silver by 7 you get the standard value that is 1.4 . Then, if you multiply 1.4 by 9 (The Ratio of gold) you get the answer that is 12.6

Answer 2

answer is = 12.6

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