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Ratio and Proportion — Data Sufficiency Questions & Practice

Practise 1 Ratio and Proportion questions from Data Sufficiency for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on Ratio and Proportion — with answers

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1. What is the actual amount of gold in an alloy? I. The alloy weighs 200 grams. II. The alloy contains gold and copper in a ratio, but the ratio is not disclosed.

AStatement I alone is sufficient, but Statement II alone is not sufficient
BStatement II alone is sufficient, but Statement I alone is not sufficient
CBoth statements I and II together are sufficient, but neither alone is sufficient
DBoth statements I and II together are not sufficient

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Answer: D

Without knowing the actual ratio of gold to copper, the amount of gold cannot be found even if the total weight is known.

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