The age of E is twice the age of 4S To find out the difference in their ages, which of the following information is/are sufficient ? I. After five years, the ratio of their ages would be 9 : 5 II. Before ten years, the ratio of their ages was 3 : 1

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Q: 118 (CAPF/2015)
The age of ‘E’ is twice the age of 4S To find out the difference in their ages, which of the following information is/are sufficient ? I. After five years, the ratio of their ages would be 9 : 5 II. Before ten years, the ratio of their ages was 3 : 1

question_subject: 

Maths

question_exam: 

CAPF

stats: 

0,4,4,1,1,4,2

keywords: 

{'ages': [0, 0, 3, 2], 'age': [2, 1, 1, 2], 'ratio': [1, 0, 1, 12], '4s': [0, 0, 0, 1], 'years': [1, 0, 0, 2]}

The correct answer is option 3, which means either I or II is sufficient to find out the difference in their ages.

Let`s analyze each option to understand why.

Option 1: Only I - This means that knowing that after five years, the ratio of their ages would be 9:5 is sufficient. This information alone allows us to determine the difference in their ages.

Option 2: Only II - This means that knowing that before ten years, the ratio of their ages was 3:1 is sufficient. This information alone allows us to determine the difference in their ages.

Option 3: Either I or II - This means that either knowing the information in option I or option II is sufficient to find out the difference in their ages. Thus, if we know either that after five years, the ratio of their ages would be 9:5, or that before ten years, the ratio of their ages was 3:1, we can determine the difference in their ages.

Option 4: Both I and II - This means that we need to know both pieces of information (option I and II) to find out the difference in their ages. However, the question states that either option I or II is sufficient, making option 4 incorrect