Equal weights of two alloys containing tin, copper and lead in the ratio 5:2:7 and 8:11:9 are melted...
Equal weights of two alloys containing tin, copper and lead in the ratio 5:2:7 and 8:11:9 are melted and mixed together. What is the ratio of tin, copper and lead in the resultant alloy?
Answer/Solution
18:15: 23
Steps/Work
Let the weight of the two alloys be w each
Required ratio =
(5w/14 +8w/28): ( 2w/14+11w/28 ): (7w/14+9w/28)
= 18w/28 : 15w/28 : 23w/28
=18:15: 23
ANSWER:D
Required ratio =
(5w/14 +8w/28): ( 2w/14+11w/28 ): (7w/14+9w/28)
= 18w/28 : 15w/28 : 23w/28
=18:15: 23
ANSWER:D