Math
There are two bars of gold-silver alloy. The first bar has 2 parts of gold and 3 parts of silver, and the other has 3 parts of gold and 7 parts of silver. If both bars are melted into an 8 kg bar with the final ratio of 5:11 (gold to silver), what was the weight of the first bar?
A. 1 kg
B. 3 kg
C. 5 kg
D. 6 kg
E. 7 kg
Correct Answer - A - (click and drag your mouse to see the answer)
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Verbal
Art experts have attributed the enduring intrigue of Leonardo da Vinci's Mona Lisa to everything from having an enigmatic smile, which was never explained, to her association with the rich and powerful families of Europe.
• having an enigmatic smile, which was never explained
• having an enigmatic smile, which has never been explained
• her enigmatic smile, for which there has never been an explanation
• her enigmatic smile, which has never been explained
• having an enigmatic smile, for which there has never been an explanation
Correct Answer - D - (click and drag your mouse to see the answer)
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