The problem asks us to identify the 'odd one out' from a given series of figures, which are names of animals. This is a classification-based reasoning question where we need to find a common characteristic among most items and then identify the one that does not share that characteristic.
C) a ā The Tortoise (a) is the odd one out because it is primarily a land-dwelling reptile, whereas the Crab, Frog, and Fish are all animals that live in water for a significant portion or all of their lives.
The question asks to identify the director of the film 'Poorna', which is based on the life of Poorna Malavath, the youngest girl to climb Mount Everest. This requires knowledge of Indian cinema and specific film directors.
A) Rahul Bose is the director of the film 'Poorna'. He also played the role of Praveen Kumar, Poorna's mentor, in the film.
The question asks for the full form of the acronym GST. This is a direct knowledge-based question related to a significant economic reform in India.
The Goods and Services Tax (GST) is a value-added tax levied on most goods and services sold for domestic consumption. It was introduced in India on July 1, 2017, as a comprehensive indirect tax reform.
D) Goods and Services Tax
This is the universally recognized and official full form of GST, which is a significant indirect tax system implemented in India and many other countries.
This question asks for the standard speed of sound in air at a specific temperature (0 Ā°C) and requires knowledge of the correct units for speed. The speed of sound is a fundamental physical constant that varies with the medium and temperature.
D) 331 ms-1 ā This option correctly states both the numerical value (331) and the appropriate SI unit for speed (meters per second, or \(m s^{-1}\)).
Thirty men can do a piece of work in 16 days working 8 hrs a day. How many men are needed to complete another work, which is twice the first one, in 10 days working 12 hrs a day?
The following are the steps involved in solving the above problem. Arrange them in sequential order.
A) M2 = \(\frac{30\times16\times8\times2x}{x\times12\times10}\)
B) \(\frac{30\times16\times8}{x}\) = \(\frac{M_2\times12\times10}{2x}\)
C) \(\frac{M_1\times D_1\times H_1}{W_1}\) = \(\frac{M_2\times D_2\times H_2}{W_2}\)
D) M2 = 64
This problem involves the concept of work and time, specifically using the formula relating men, days, hours, and work done. We need to identify the correct formula, substitute the given values, and then solve for the unknown quantity.
Identify the general formula: The fundamental formula for work-related problems, where the amount of work done is proportional to the number of men, days, and hours, is given by:
\[ \frac{M_1 \times D_1 \times H_1}{W_1} = \frac{M_2 \times D_2 \times H_2}{W_2} \]Where \(M\) is the number of men, \(D\) is the number of days, \(H\) is the number of hours per day, and \(W\) is the amount of work. The subscripts 1 and 2 refer to two different scenarios. This corresponds to step C.
Substitute the given values into the formula: From the problem statement:
Substitute these values into the formula from step C:
\[ \frac{30 \times 16 \times 8}{x} = \frac{M_2 \times 12 \times 10}{2x} \]This corresponds to step B.
Rearrange the equation to solve for \(M_2\): To find \(M_2\), we need to isolate it. Multiply both sides by \(2x\) and divide by \((12 \times 10)\):
\[ M_2 = \frac{30 \times 16 \times 8 \times 2x}{x \times 12 \times 10} \]This corresponds to step A.
Calculate the value of \(M_2\): Now, perform the calculation:
\[ M_2 = \frac{30 \times 16 \times 8 \times 2}{12 \times 10} \] \[ M_2 = \frac{30 \times 16 \times 8 \times 2}{120} \] \[ M_2 = \frac{61440}{120} \] \[ M_2 = 512 \]Let's recheck the calculation. Cancel out terms:
\[ M_2 = \frac{30 \times 16 \times 8 \times 2}{12 \times 10} \]Cancel \(x\) from numerator and denominator:
\[ M_2 = \frac{30 \times 16 \times 8 \times 2}{12 \times 10} \]Cancel 10 from 30:
\[ M_2 = \frac{3 \times 16 \times 8 \times 2}{12} \]Cancel 3 from 12:
\[ M_2 = \frac{16 \times 8 \times 2}{4} \]Cancel 4 from 16:
\[ M_2 = 4 \times 8 \times 2 \] \[ M_2 = 32 \times 2 \] \[ M_2 = 64 \]This corresponds to step D.
Therefore, the correct sequential order of the steps is C, B, A, D.
1st January 2018 was a Monday. Which of the following years will also start on a Monday?
To find a year that starts on the same day of the week, we need to calculate the number of "odd days" between the given year (2018) and the options. A year will start on the same day of the week if the total number of odd days accumulated between the two years is a multiple of 7 (i.e., 0 odd days).
A normal year has 365 days, which means \(365 = 52 \times 7 + 1\) odd day. A leap year has 366 days, which means \(366 = 52 \times 7 + 2\) odd days.
D) 2024
The question asks to identify the compound that contains a double bond. This requires knowledge of the basic structures and bonding types in simple organic compounds, specifically alkanes, alkenes, and alkynes.
Correct Option: D) Ethene has the chemical formula \( \text{C}_2\text{H}_4 \). Its structure is \( \text{CH}_2=\text{CH}_2 \), which clearly shows a carbon-carbon double bond.
The question asks to identify the scientist who performed calculations related to the fifth state of matter. This requires knowledge of the history of quantum mechanics and the discovery/prediction of different states of matter.
B) Satyendra Nath Bose is credited with developing the statistical mechanics for bosons, which Albert Einstein then applied to predict the existence of the Bose-Einstein Condensate, often referred to as the fifth state of matter. His calculations were fundamental to understanding this state.
To find the duration for which the bulb was switched on, we need to calculate the time difference between the switch-off time and the switch-on time. This involves subtracting the start time from the end time, paying attention to hours, minutes, and seconds.
Switch-off time: 12 hours 30 minutes 34 seconds
Switch-on time: 2 hours 39 minutes 40 seconds
First, subtract seconds:
Next, subtract minutes:
Finally, subtract hours:
Combining these, the duration is 9 hours 50 minutes 54 seconds.
A) 9 hours 50 minutes 54 seconds is the correct duration calculated by subtracting the switch-on time from the switch-off time.
We need to evaluate the strength of each argument presented in response to the question: "Are stock markets sources of wealth creation?" A strong argument is one that is logically sound and directly relevant to the question, providing a compelling reason for or against the statement.
Correct Option: D) Only argument 2 is strong.