Your Answer : (Not Answered)

Correct Answer : B

The fraction is \(\frac{5}{3}\).

Test the condition \(x - \frac{2}{x} = \frac{7}{15}\):

\[ \begin{aligned} \frac{5}{3} - 2 \times \frac{3}{5} &= \frac{5}{3} - \frac{6}{5} \\ &= \frac{25 - 18}{15} = \frac{7}{15} \end{aligned} \]

For \(\frac{3}{5}\) the result is \(\frac{3}{5} - \frac{10}{3}\), negative; for \(\frac{4}{3}\) it is \(\frac{4}{3} - \frac{3}{2} \lt 0\); for \(\frac{3}{4}\) it is also negative. Since \(x\) must exceed twice its reciprocal, it must be greater than \(\sqrt{2}\), and only \(\frac{5}{3}\) is.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: ₹66

The three quantities are related by \[ \text{BD} = \text{TD} + \text{BG}, \] so \[ \text{BD} = 60 + 6 = 66. \] The relation holds because BD is simple interest on the face value while TD is simple interest on the present worth, and the face value exceeds the present worth by exactly the true discount - so the extra interest is the interest on TD, which is the banker’s gain. That also gives the second expression, \( \text{BG} = \dfrac{\text{TD}^{2}}{\text{PW}} \). From it the present worth here is \( 60^{2}/6 = 600 \), and the face value is \( 600 + 60 = 660 \). BD always exceeds TD, so an answer smaller than the true discount can be rejected without calculation - which disposes of 54 at once.

Your Answer : (Not Answered)

Correct Answer : B

Write \( b \) for the boat's speed in still water and \( r \) for the stream's. Then

\[ \text{downstream} = b + r, \qquad \text{upstream} = b - r \]

\[ b + r = 6 \text{ km/h}, \qquad b - r = 4 \text{ km/h} \]

\[ b = \frac{6 + 4}{2} = 5 \text{ kmph} \]

The stream's own rate is \( \tfrac{6-4}{2} = 1 \) kmph, which is offered as a distractor. The man's rate must lie between his two observed speeds, so it has to be 5.

Your Answer : (Not Answered)

Correct Answer : D

The smallest time difference is 49 minutes.

On a 12-hour clock the only possible times are 1:01, 2:02, ..., 9:09, 10:10, 11:11 and 12:12. Each step from one hour to the next adds one hour and one minute, so most neighbouring pairs are 61 minutes apart.

The exception is the change from 12:12 back to 1:01:

\[ \begin{aligned} 12{:}12 \to 1{:}00 &= 48 \text{ min} \\ 1{:}00 \to 1{:}01 &= 1 \text{ min} \\ \text{total} &= 49 \text{ min} \end{aligned} \]

61 minutes is the usual gap, not the smallest. 60 minutes would need the minute digits to stay the same, which the rule does not allow, and 101 minutes is not a gap between any two such times.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Either 1 or 2 is sufficient

The question asks how A is related to B, and since B is A’s brother the answer turns entirely on A’s sex. Statement 1 calls A the sister of C, and statement 2 makes A the wife of E; each establishes that A is female and therefore B’s sister. Either alone will do.

Your Answer : (Not Answered)

Correct Answer : A

In "Stand still if you value your life", the clause "if you value your life" is an adverb clause of condition. It begins with the conjunction "if" and states the condition on which the command to stand still depends.

An adverb clause of comparison would begin with as or than. A clause of manner would use as or as if and tell how something is done. A clause of concession would use though or although and show a contrast. None of these words is in the sentence, so condition is the answer.

Your Answer : (Not Answered)

Correct Answer : B

The correct sentence is 'Fools rush in where angels fear to tread', which is the well-known proverb, with 'where' as the adverb clause of place. 'If', 'as' and 'before' give a condition, a reason or a time, and none of these is in the proverb. It is a proverb from Pope's Essay on Criticism, 'For fools rush in where angels fear to tread', and the clause with 'where' is an adverb clause of place. A clause with 'if' would make the second sentence a condition, 'as' would give a reason and 'before' a time, none of which suits the saying.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: both (A) & (B)

In the SQL standard UNIQUE by itself permits nulls, but in the sense these questions use it - as the guarantee that the column identifies rows - it is taken to require distinct values and no nulls, which is what makes it equivalent in effect to a key.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: CMOS battery is nearing end of life

The checksum is stored with the CMOS settings and fails when they are corrupted, which happens as the battery loses the charge that maintains them. A new battery and re-entered settings cure it.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: Alt + F9

Alt + F9 toggles every field in the document between its result and its code. Shift + F9 does the same for the selected field only, and F9 updates fields rather than revealing them.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: is a method of memory allocation by which the program is subdivided into equal portions or pages

Paging divides the address space into fixed-size pages and memory into frames of the same size, so any page can go in any free frame. Because the pieces are all the same size there is no external fragmentation, and a program need not occupy contiguous memory.

Your Answer : (Not Answered)

Correct Answer : A

The correct code is 3 4 2 1.

• A. Mahatma Gandhi wrote Hind Swaraj (1909): 3.
• B. Ram Manohar Lohia wrote The Wheel of History: 4.
• C. Dr. Rajendra Prasad wrote India Divided (1946): 2.
• D. Maulana Abul Kalam Azad wrote India Wins Freedom: 1.

Read in A B C D order this gives 3 4 2 1. The other codes give India Wins Freedom to Gandhi or Hind Swaraj to someone else, which rules them out.

Your Answer : (Not Answered)

Correct Answer : C

Concave mirrors are used in 1, 2 and 4 only.

A torch and a vehicle headlight place the bulb at the focus of a concave reflector, so the reflected light leaves as a strong parallel beam. A shaving mirror is concave because a face held closer than the focus gives an upright, magnified image.

Rear-view wing mirrors are convex: they always give an upright, diminished image and a much wider field of view of the traffic behind. So options containing item 3 are wrong.

Your Answer : (Not Answered)

Correct Answer : D

Olive, maple and walnut are trees of the mid-latitude or temperate forests, which are largely deciduous broadleaf.

Rosewood, mahogany and rubber belong to the equatorial rainforest; teak, sal and bamboo to the tropical monsoon forest; and pine, fir and spruce to the cold coniferous forest further north.

Your Answer : (Not Answered)

Correct Answer : A

The study of an organism's internal structure is anatomy.

It proceeds by dissection and by section, and is the basis of medicine and of comparative studies of relationship. Agronomy, agrology and agrostology all belong to agriculture instead.

Your Answer : (Not Answered)

Correct Answer : B

Kirkpatrick Macmillan is credited with it.

The Scottish blacksmith is said to have added rear-driven treadles to a hobby-horse about 1839, making the first bicycle propelled without the feet touching the ground.

Your Answer : (Not Answered)

Correct Answer : B

The Indian Evidence Act was enacted in 1872.

Drafted by Sir James Fitzjames Stephen, it codified the law of relevancy, admissions, confessions, burden of proof and examination of witnesses. It was replaced by the Bharatiya Sakshya Adhiniyam in 2024.

Your Answer : (Not Answered)

Correct Answer : A

Wood charcoal is used for adsorption. Heating it drives off volatile matter and leaves an enormous internal surface area - activated charcoal offers hundreds of square metres per gram.

Gas and dissolved molecules stick to that surface, which is why it is used in water filters, gas masks and to decolourise solutions.

Your Answer : (Not Answered)

Correct Answer : D

It is Dibrugarh to Kanyakumari.

The Vivek Express covers 4,189 km in about 80 hours across nine states - the longest single railway journey in India, and among the longest in the world.

Your Answer : (Not Answered)

Correct Answer : B

14 October is World Standards Day.

It marks the meeting of delegates from 25 countries in London on that date in 1946 to found what became the International Organization for Standardization, and is observed jointly by the ISO, IEC and ITU.