Two alloys A and B are composed of two basic elements. The ratios of the compositions of the two basic elements in the two alloys are 5 : 3 and 5 : 1, respectively. A new alloy X is formed by mixing the two alloys A and B in the ratio 4 : 3. What is the ratio of the composition of the two basic elements in alloy X ? Options:	A) 1 : 1	B) 2 : 3	C) 5 : 2	D) 4 : 3	E) 7 : 9
Mixture A has a total of 5 + 3= 
<gadget id="calculator">5 + 3</gadget>
<output>8</output>
8 parts. If in the final mixture this represents 4 parts, then the total number of parts in mixture B should be  (8/4)*3= 
<gadget id="calculator"> (8/4)*3</gadget>
<output>6</output>
6.   So, we should take of mixture B a quantity with 5 and 1 parts, respectively.   This will give us in the final mixture (5 + 5) : (3 + 1), which means 10:4, or 5:2.   Answer 5 : 2.
<result>C</result>
Two alloys A and B are composed of two basic elements. The ratios of the compositions of the two basic elements in the two alloys are 5 : 3 and 5 : 1, respectively. A new alloy X is formed by mixing the two alloys A and B in the ratio 4 : 3. What is the ratio of the composition of the two basic elements in alloy X ?