Your Answer : (Not Answered)

Correct Answer : D

Correct answer: ₹840

The face value is given by \[ A = \frac{\text{BD} \times \text{TD}}{\text{BD} - \text{TD}}. \] Substituting, \[ A = \frac{42 \times 40}{42 - 40} = \frac{1680}{2} = 840. \] The formula comes from the definitions. BD is interest on \( A \) and TD is interest on \( \text{PW} = A - \text{TD} \), so \[ \frac{\text{BD}}{\text{TD}} = \frac{A}{A - \text{TD}}, \] and rearranging gives the result. The denominator \( \text{BD} - \text{TD} \) is the banker’s gain, here 2, so the formula can also be read as \( A = \text{BD} \times \text{TD} / \text{BG} \). As a check, the present worth is \( 840 - 40 = 800 \), and \( 40/800 = 42/840 \), confirming that both discounts are computed at the same rate and time.

Your Answer : (Not Answered)

Correct Answer : B

\[ \text{SI} = \frac{P \times R \times T}{100} \]

The five years between the two figures account for the whole increase.

\[ \frac{1020 - 720}{5} = \frac{300}{5} = \text{Rs. } 60 \text{ per year} \]

\[ P = 720 - 2 \times 60 = \text{Rs. } 600 \]

"A further period of 5 years" means seven years in all, not five - but only the gap of five is needed.

Your Answer : (Not Answered)

Correct Answer : D

RI suggests the mad rush among people to earn more money in less time, owing to which they are busy.

RII suggests that because of the availability of many sources of income, people become busy encashing them. Hence, both I and II are valid reasons.

Your Answer : (Not Answered)

Correct Answer : D

The odd pair is Snobbery : Shoes.

In the other pairs, the first word names the trade, place or goods connected with the second: millinery is the making and selling of hats, a brewery makes beer and other alcohol, and stationery is writing material such as paper.

Snobbery means looking down on others; it has nothing to do with shoes. The craft of making or mending shoes is cobbling (or shoemaking).

Your Answer : (Not Answered)

Correct Answer : D

Correct answer: 55

Among those who passed, Manisha is 16th from the top and 29th from the bottom, so \( 16 + 29 - 1 = 44 \) passed. Five more failed, making 49 who sat the examination, and six did not take part at all: \[ 44 + 5 + 6 = \mathbf{55} \]

Your Answer : (Not Answered)

Correct Answer : C

Let the number of boys and girls participating in sports be 3x and 2x respectively.

Then, 3x = 15 or x = 5.

So, number of girls participating in sports = 2x = 10.

Number of students not participating in sports = 60 - (15 + 10) = 35.

Let number of boys not participating in sports be y.

Then, number of girls not participating in sports = (35 -y).

Therefore (35 - y) = y + 5 

\(\Rightarrow  2y = 30\) 

\(\Rightarrow  y = 15.\)

So, number of girls not participating in sports = (35 - 15) = 20.

Hence, total number of girls in the class = (10 + 20) = 30

Your Answer : (Not Answered)

Correct Answer : C

The sentence reads Food prices have been rising again this month.

'Rise' is intransitive: prices rise by themselves, with no object. The present perfect continuous 'have been rising' describes an increase that began in the past and is still going on, which suits 'again this month'.

'Raise' is transitive and needs an object (shops raise prices), so 'have raised' and 'have been raising' leave the verb without one. 'Have arose' uses the past tense where the past participle is needed; the correct form would be 'have arisen'.

Your Answer : (Not Answered)

Correct Answer : D

The synonym of 'fractious' is 'irritable'. Fractious describes a person who is easily annoyed or cross, especially a child that complains and is hard to manage, and a tired child such as Kavya becomes irritable. 'Happy', 'patient' and 'excited' describe calm or cheerful states, so they are opposite to or unrelated to fractious.

Your Answer : (Not Answered)

Correct Answer : B

It is nun.

A nun is a member of a religious order. None means not any, and the two are pronounced identically.

Your Answer : (Not Answered)

Correct Answer : A

An IP address is a unique address assigned to computer when it is connected to internet.

The Internet Protocol address identifies a device on a network so that data can be sent to it and received from it, much as a postal address identifies a house.

The address is not itself a protocol: the Internet Protocol is the set of rules for addressing and routing data, and the IP address is the identifier those rules use. Nor is it a programmable device.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: the cost incurred

Compaction works, but every byte of every process must be copied, and nothing else can run while it happens. That expense is its drawback.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: Battery back-up unit

Only a UPS keeps the machine running through a power interruption, so that work in memory is written out and the system shut down properly. A surge protector guards against excess voltage but supplies nothing when the mains fails.

Your Answer : (Not Answered)

Correct Answer : A

Statements A and B are correct, so the answer is Only A and B.

India's supercomputer programme began in the late 1980s, when the Centre for Development of Advanced Computing (C-DAC) was set up in 1988 after India was refused the import of a Cray supercomputer (A). C-DAC's PARAM 8000, unveiled in 1991, is regarded as India's first supercomputer (B).

Statement C is wrong: Aaditya is the supercomputer of the Indian Institute of Tropical Meteorology, Pune, used for weather and climate modelling. BARC's in-house supercomputers are the Anupam series. Any option containing C is therefore wrong.

Your Answer : (Not Answered)

Correct Answer : C

Only (A) is true.

The reactivity series runs \(\mathrm{K \gt Na \gt Ca \gt Mg \gt Al \gt Zn \gt Fe}\) and so on. Zinc lies between aluminium and iron, so (A) is correct.

Sodium is less reactive than potassium (though more reactive than calcium), so (B) is false, and aluminium is less reactive than magnesium, so (C) is false.

A simple test is displacement: a more reactive metal displaces a less reactive one from its salt solution, so zinc displaces iron from iron sulphate but cannot displace aluminium.

Your Answer : (Not Answered)

Correct Answer : D

It is Malagasy.

Malagasy is an Austronesian language, related to those of Borneo rather than to any African language - the trace of a settlement across the Indian Ocean about 1,500 years ago. French is co-official.

Your Answer : (Not Answered)

Correct Answer : A

It is the Serbian dinar.

The dinar dates from 1868 in the Principality of Serbia, and returned after the break-up of Yugoslavia. Serbia is a candidate for European Union membership but has not adopted the euro.

Your Answer : (Not Answered)

Correct Answer : A

Ajit Agarkar took two wickets in the match on his Test debut, against Australia at Adelaide in 1999.

His Test career was uneven, but he took 288 wickets in 191 one-day internationals and is still the fastest Indian to 50 ODI wickets.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: The stratosphere

The stratosphere lies directly above the troposphere, separated from it by the tropopause, and extends to about 50 km. The order from the surface upward is troposphere, stratosphere, mesosphere, thermosphere, exosphere, and the temperature profile alternates: it falls with height in the troposphere, rises in the stratosphere, falls again in the mesosphere and rises in the thermosphere. The stratosphere warms with height because the ozone it contains absorbs ultraviolet radiation. That inversion - warm air above cool - makes the layer extremely stable, so there is almost no vertical mixing, which is why volcanic aerosols and pollutants injected into it can remain for years. It is also why aircraft cruise at its base: above the weather, in smooth air. The mesosphere above is the coldest part of the atmosphere and where meteors burn up.

Your Answer : (Not Answered)

Correct Answer : C

e-Medha is an online public access catalogue for Indian medical heritage books.

e-MEDHA (electronic Medical Heritage Accession) was developed by the National Institute of Indian Medical Heritage at Hyderabad, an institute of the Central Council for Research in Ayurvedic Sciences under the Ministry of AYUSH. It catalogues the institute's collection of books on Indian medical heritage so that readers can search it online.

The other descriptions fit sister portals of the same institute rather than e-Medha: NAMSTE for standardised Ayurveda terminology in clinical records, AMAR for information on rare manuscripts, and RMIS for managing research and development.

Your Answer : (Not Answered)

Correct Answer : A

As on April 2023 the Governor of the Reserve Bank of India was Shri Shaktikanta Das, who held the office from December 2018. Dr. Michael Debabrata Patra was a Deputy Governor, T. Rabi Sankar was also a Deputy Governor, and M. Rajeshwar Rao was a Deputy Governor as well, so the three of them were not the Governor at that time.