Your Answer : (Not Answered)

Correct Answer : A

The time taken is 4 hours.

The speed in still water is the average of the upstream and downstream speeds. With the ratio 3 : 5, write them as 3k and 5k:

\[ \begin{aligned} \frac{3k + 5k}{2} &= 24,\ k = 6 \\ \text{up} &= 18,\ \text{down} = 30\ \text{km/h} \\ t &= \frac{36}{18} + \frac{60}{30} = 2 + 2 = 4 \end{aligned} \]

5 hours and 3 hours do not follow from these speeds, and since 4 hours is offered, 'None of these' is wrong.

Your Answer : (Not Answered)

Correct Answer : D

The water weighs 1.408 kg.

The cone has radius 8 cm and height 21 cm. With \(\pi = \frac{22}{7}\):

\[ \begin{aligned} V &= \tfrac{1}{3}\pi r^{2} h \\ &= \tfrac{1}{3} \times \tfrac{22}{7} \times 64 \times 21 \\ &= 1408\ \text{cm}^{3} \end{aligned} \]

Water has a density of 1 g/cm³, so 1408 cm³ weighs 1408 g = 1.408 kg.

Using the diameter 16 cm as the radius gives four times as much. Leaving out the \(\frac{1}{3}\) gives 4.224 kg, the volume of a cylinder. Neither matches 2.480 kg or 3.875 kg, which do not follow from the dimensions.

Your Answer : (Not Answered)

Correct Answer : A

The ladder is the hypotenuse and the 3 m is adjacent to the \( 45^{\circ} \) angle, so cosine relates them.

\[ \cos 45^{\circ} = \frac{3}{L} \quad\Longrightarrow\quad \frac{1}{\sqrt{2}} = \frac{3}{L} \]

\[ L = 3\sqrt{2} = 3 \times 1.414 = 4.243 \approx 4.23 \text{ m} \]

At \( 45^{\circ} \) the ladder reaches 3 m up the wall as well, so it is the diagonal of a 3 m square - hence the factor \( \sqrt{2} \).

Your Answer : (Not Answered)

Correct Answer : D

Let us assume Mr. Karan borrowed amount is Rs. A. (the principal)
By formula of simple interest, S.I. = PRT / 100
Where P = The principal, R = Rate of interest as a %, T = Time in years
S.I. = (P * 6 * 9)/100 = 54 P/100
Amount = Principal + S.I.
8110 = P + (54P/100)
8110 = (100P + 54P)/100
8110 = 154P/100
P = (8110 * 100)/154 = Rs. 5266.233

Your Answer : (Not Answered)

Correct Answer : E

Correct answer: None of these

Facing the centre, each person’s left is the next seat clockwise and their right the next seat anticlockwise. Fix F; A sits two to F’s left, C three to F’s right, B two beyond C and H four to B’s left - one chain filling five seats. D two seats to G’s right then fits the remaining three in only one way. Clockwise the circle reads F → E → A → H → D → C → G → B.

Counting three seats to B’s left - clockwise - gives F, E and then A. A is not among the choices offered, so the answer is none of these; the arrangement itself is fully determined.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: P x Q % R - T + S

P × Q makes P the wife of Q; Q % R makes Q the father of R; R – T makes R the brother of T, so T is also Q’s child; and T + S makes T the sister of S, establishing that T is female. A daughter of Q is a daughter of his wife P, so T is the daughter of P.

Your Answer : (Not Answered)

Correct Answer : B

The answer is a; a: 'She's staying at a hotel in a small town in Colorado.'

Neither the hotel nor the town has been mentioned before or is identified for the listener; they are simply one hotel and one small town among many. A singular countable noun introduced for the first time takes the indefinite article a.

The would suggest a particular hotel or town already known to the listener, which nothing in the sentence supports, so the options with the are wrong.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Light

A light pen is held against the screen and detects the light emitted at the point it touches, which tells the computer where it is pointing. There is no such input device as an ink pen or a magnetic pen.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: UPS

Line deficiencies are shortfalls - sags, brownouts and outages - and only a UPS supplies power to make them up. A surge protector deals with the opposite problem, excess voltage.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Scan

The SCAN algorithm, often called the elevator algorithm, sweeps the arm steadily from one end of the disk to the other and back, serving every request it passes on the way. It avoids the starvation of far-out requests that shortest-seek-time-first can cause, while still moving far less than first-come-first-served.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: ROM

Firmware is the program a device needs the moment it is switched on - the BIOS that starts the machine, for instance - so it must survive with the power off and be present before any disk can be read. That calls for ROM, in practice flash memory that can be rewritten when the firmware is updated.

Your Answer : (Not Answered)

Correct Answer : C

The folk deity is Mallinath ji.

Mallinath ji was the eldest son of Rawal Salkha of Marwar and his queen Janide. He became a disciple of the saint Ugamsi Bhati in 1389 and is worshipped as a warrior-saint. The Malani region of Barmer is named after him, and the Tilwara cattle fair on the Luni is held in his memory.

Jasnath ji founded the Jasnathi sect at Katariyasar near Bikaner. Ramdev ji, worshipped at Runicha (Ramdevra), was the son of Ajmal ji Tanwar. Devnarayan ji, the deity of the Gurjars, was the son of Savai Bhoj. None of them fits the parentage in the stem.

Your Answer : (Not Answered)

Correct Answer : A

The Hindu Succession Act was enacted in 1956.

It codified intestate succession among Hindus and gave women absolute ownership of property they held. The 2005 amendment made daughters coparceners in a joint family with the same rights as sons.

Your Answer : (Not Answered)

Correct Answer : D

2008 was declared the International Year of Languages, the Potato and Sanitation - all three.

The languages year responded to the loss of a language every fortnight; the potato year marked the crop's importance to food security; and the sanitation year addressed the 2.5 billion people without adequate sanitation.

Your Answer : (Not Answered)

Correct Answer : A

Amjad Ali Khan plays the sarod.

He belongs to the Bangash lineage, six generations of sarod players, and his ancestors are credited with developing the instrument from the Afghan rabab. He was awarded the Padma Vibhushan in 2001.

Your Answer : (Not Answered)

Correct Answer : D

Rohit Sharma received it.

The Dilip Sardesai Award is given by the BCCI for the best performance in a Test series, and is named after the batsman remembered for the 1971 tour of the West Indies.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: The British monarch

The Indian President is a nominal or constitutional head of state, whose position is closest to that of the British monarch: the head of state reigns, and the Council of Ministers governs. Article 74 makes ministerial advice binding, so the President exercises almost no independent power. The differences are real but secondary. The Indian President is elected, for a five-year term, and can be impeached; the British monarch is hereditary and holds office for life. But the constitutional function - assenting to legislation, appointing the head of government, acting on advice - is the same. The American President is the opposite case: separately elected, head of state and head of government at once, not answerable to the legislature and unable to be removed by it except through impeachment for specified offences. The residual powers the Indian President does hold are worth knowing: a suspensive veto on ordinary bills, the power to require reconsideration of advice once, and genuine discretion when no party has a clear majority in the Lok Sabha.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: The northeastern states

Jhum is shifting cultivation, practised chiefly in the hill areas of the northeastern states - Nagaland, Mizoram, Meghalaya, Manipur, Tripura, Assam and Arunachal Pradesh. A patch of forest is cleared and burnt, the ash fertilising the soil; it is cropped for two or three years until yields fall, then abandoned and left fallow while the cultivators move on. It is also called slash-and-burn agriculture, and the same practice has local names elsewhere - podu in Odisha and Andhra Pradesh, bewar in Madhya Pradesh, kumari in the Western Ghats. It was sustainable while the fallow period ran to fifteen or twenty years and the population was small. Shortening cycles have made it a cause of deforestation, soil erosion and declining fertility, and governments have long tried to replace it with terraced or settled farming - with limited success, since it is bound up with land tenure and community practice as much as with agronomy.

Your Answer : (Not Answered)

Correct Answer : C

The main objective of Make in India is to encourage manufacturing in India.

Launched by the Government of India in September 2014, the initiative aims to make India a global manufacturing hub by attracting domestic and foreign investment, easing the conditions for doing business and building infrastructure, so as to create jobs and raise manufacturing's share of the economy.

Higher farm output, foreign trade and tourism may benefit indirectly, but none of them is the programme's central aim, which its name states: making goods in India.

Your Answer : (Not Answered)

Correct Answer : B

The task force on blue economy is a collaboration between India and Norway.

The India-Norway Task Force on Blue Economy for Sustainable Development was set up in 2020, following a 2019 agreement between the two prime ministers, to develop joint initiatives on the sustainable use of ocean resources, including marine pollution, ocean energy and fisheries.

Switzerland, Sweden and France are not India's partners in this task force.