A certain alloy contains Lead, copper and tin. How many pounds of tin are in $56$ pounds of the alloy?

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swerve: Legendary Member; Posts: 2238; Joined: Sun Oct 29, 2017 2:04 pm; Followed by:6 members

A certain alloy contains Lead, copper and tin. How many pounds of tin are in $56$ pounds of the alloy?

by swerve » Thu Sep 28, 2023 6:19 pm

A certain alloy contains Lead, copper and tin. How many pounds of tin are in $56$ pounds of the alloy?

1) By weight the alloy is $3/7$ lead and $5/14$ copper
2) By weight the alloy is $6$ parts lead and $5$ parts copper

The OA is A

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