This is aptitude questions and answers section on Indices and Surds with explanation for various interview, competitive examinations and entrance tests. This Indices and Surds section will linearly deal with some fundamental questions of Indices and Surds Quiz which are majorly asked in competitive exams like CAT, XAT, IBPS and government exams. Candidates who are attempting Indices and Surds Online test they can know their performance levels. The purpose of this Indices and Surds MCQ online test is to help the intenders who are in weaker areas and how to get grip on Indices and Surds Aptitude Questions and Answers. These Indices and Surds Aptitude Multiple Choice Questions will prepare you for a technical job interview, as well as written test, and many certification exams.

## Indices and Surds Questions - Indices and Surds Quiz Details

Referring to the above tabular form will give the necessary details about Indices and Surds Aptitude Quiz. People who are in deep search about Indices and Surds MCQ Online test they can check this web page. With no effort, people can easily gain the data on relevant topics and Indices and Surds Aptitude Multiple Choice Questions. So stay tuned to our blog allindiaexams.in.

### Indices and Surds Aptitude Questions

Practice the Indices and Surds Aptitude Multiple Choice Questions and Answers from this post. Candidates, who want to sharpen their knowledge in Indices and Surds MCQ can check out this article. Many candidates are unable to crack the interview process due to the lack of technical expertise. To avoid such type of complications, we are furnishing the Indices and Surds Aptitude Questions along with answers in the below sections. By practicing the Indices and Surds Online Test aspirants can learn minimum knowledge about the subject.
### Indices and Surds MCQ Quiz Answers with Solutions

Aspirants can check the Indices and Surds Answers from this article. After completion of the Indices and Surds Quiz, you can check your answer by visiting the View Answer tab. For testing your Indices and Surds result, people no need to submit their answers. And also important note for contenders is who want to do rough work those contenders can click on the Workspace tab. Many of the postulates don't know how to check the Indices and Surds Answers. For those intenders, we have equipped the every data which are useful for them.

Online Test Name |
Indices and Surds |

Exam Type |
Multiple Choice Questions |

Category |
Aptitude Quiz |

Number of Questions |
30 |

Referring to the above tabular form will give the necessary details about Indices and Surds Aptitude Quiz. People who are in deep search about Indices and Surds MCQ Online test they can check this web page. With no effort, people can easily gain the data on relevant topics and Indices and Surds Aptitude Multiple Choice Questions. So stay tuned to our blog allindiaexams.in.

26. [(√7 + √5) / ( (√7 - √5)] + [(√7 - √5) / (√7 + √5)] = ?
### Answer & Explanation

### Workspace

### Report Error

Answer: Option B

Explanation:

[(√7 + √5) / ( (√7 - √5)] + [(√7 - √5) / (√7 + √5)]

= [(√7 + √5)^{2} + (√7 - √5)^{2}] / (√7 + √5)(√7 - √5)

[(√7 + √5)^{2} + (√7 - √5)^{2}] / 2 = 12

27. If x = √11 + √20, y = √15 + √17 and z = √14 + √18, then which of the following holds true?
### Answer & Explanation

### Workspace

### Report Error

Answer: Option D

Explanation:

By squaring and simplifying,

x^{2} = 31 + 2√220

y^{2} = 32 + 2√255

z^{2} = 32 + 2√252

x^{2} < z^{2} < y^{2} => x < z < y.

28. If x = √3 - √2, then find (x - 1/x)^{2}
### Answer & Explanation

### Workspace

### Report Error

Answer: Option E

Explanation:

x = √3 - √2

1/x = 1/√3 - √2 = (√3 + √2) / (√3 - √2)(√3 + √2)

= √3 + √2

(x - 1/x)^{2} = [(√3 - √2) - (√3 + √2)]^{2}

= (-2√2)^{2}
= 8

29. If x = √8 - √7, y = √6 - √5 and z = √10 - 3, which of the following is true?
### Answer & Explanation

### Workspace

### Report Error

Answer: Option B

Explanation:

x = √8 - √7 = 1/(√8 + √7) and y = √6 - √5 = 1/(√6 + √5) and z = √10 - 3 = 1/(√10 + 3)

As (√8 + √7) > (√6 + √5), (√8 - √7) < (√6 - √5)

As (√10 + 3) > (√8 + √7) > (√6 + √5)

z < x < y.

30. If x = √196 + √200, then x/2 + 2/x is?
### Answer & Explanation

### Workspace

### Report Error

Answer: Option C

Explanation:

x = 14 + 10√2

x/2 = 7 + 5√2

2/x = (7 - 5√2) / (7 + 5√2)(7 - 5√2) = 5√2 - 7

x/2 + 2/x = 10√2 = 2√50