A) 13:42
B) 17:43
C) 19:43
D) 15:42
E) 16:43
Correct Answer: B
Solution :
In 2 kg of metal Zinc Copper \[2\times \frac{1}{3}\] \[2\times \frac{2}{3}\] \[\frac{2}{3}\] \[\frac{4}{3}\] In 3 kg of metal Zinc Copper \[3\times \frac{1}{4}\] \[3\times \frac{3}{4}\] \[\frac{3}{4}\] \[\frac{9}{4}\] Now, new ratio \[=\frac{\frac{2}{3}+\frac{3}{4}}{\frac{4}{3}+\frac{9}{4}}\] \[=\frac{8+9}{12}\times \frac{12}{16+27}=\frac{17}{43}=17:43\]You need to login to perform this action.
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