Equal weights of two alloys containing tin, copper and lead in the ratio 3:2:7 and 4:11:3 are melted and mixed together. What is the ratio of tin, copper and lead in the resultant alloy? Choose the correct choice from the following choices.
A) 41:81:37 B) 33:91:81 C) 17:28:27 D) 51:86:89 E) 41:86:89
Let the weight of the two alloys be w each   Required ratio =   (3w/12 +4w/18): ( 2w/12 +11w/18 ): (7w/12+3w/18)   = 17w/36 : 28w/36 : 27w/36   = 17:28: 27   ANSWER:17:28:27
<result>C</result>
Equal weights of two alloys containing tin, copper and lead in the ratio 3:2:7 and 4:11:3 are melted and mixed together. What is the ratio of tin, copper and lead in the resultant alloy?