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Question : A man travels some distance at a speed of 12 km/hr and returns at a speed of 9 km/hr. If the total time taken by him is 2 hours and 20 minutes, the distance is:
Option 1: 35 km
Option 2: 21 km
Option 3: 9 km
Option 4: 12 km
Correct Answer: 12 km
Solution : Let the total distance be $x$ km. 2 hr 20 min = 2 + $\frac{1}{3}=\frac{7}{3}$ hr According to the given condition, $\frac{x}{12}+\frac{x}{9}=\frac{7}{3}$ ⇒ $\frac{3x+4x}{36}=\frac{7}{3}$ ⇒ $7x=\frac{7}{3}×36$ ⇒ $x=\frac{84}{7}$ $\therefore x= 12$ km Hence, the correct answer is 12 km.
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No error".
Outside, the rain beats down (1) / in floods, and the sea gives forth (2) / a sound like an alarm bells. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (3)
Solution : The error lies in the third part of the sentence.
"Alarm bells" should be replaced with "alarm bell", as it is a singular noun that is being talked about in the sentence. Hence, the plural form should not be used in the sentence.
Therefore, the
Question : Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution’.
This is the city wherever I were born twenty years ago.
Option 1: where I was born
Option 2: wherein I borne
Option 3: No substitution
Option 4: where me were born
Correct Answer: where I was born
Solution : The correct choice is the first option.
In the sentence, wherever should be replaced with where, as wherever is used for indefinite locations and where is used to refer to the specific locations. Thus, where is used to correctly refer
Question : In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase. To go a long way
Option 1: To become successful in life
Option 2: To join a foreign company
Option 3: To avoid short cuts
Option 4: To go on a long drive
Correct Answer: To become successful in life
The idiom to go a long way figuratively means making significant progress or achieving success in one's endeavours over time. It implies moving forward, making advancements, and accomplishing goals, especially in the context of
Question : Sandstone is metamorphosed to:
Option 1: Shale
Option 2: Slate
Option 3: Quartzite
Option 4: Marble
Correct Answer: Quartzite
Solution : The correct option is Quartzite.
The metamorphic rock known as quartzite is created when the intense heat and pressure of regional metamorphism cause the individual quartz grains in sandstone to recrystallise together with the previous cementing substance.
Question : If $\sin^2\theta = \cos^3\theta$, then the value of $(\cot^2\theta -\cot^6\theta)$ is:
Option 1: –1
Option 2: 0
Option 3: 2
Option 4: 1
Correct Answer: –1
Solution : Given: $\sin^2\theta = \cos^3\theta$ Squaring both sides, ⇒ $\sin^4\theta = \cos^6\theta$ -------------(i) Now, $(\cot^2\theta-\cot^6\theta)$ = $\cot^2\theta - \frac{\cos^6 \theta}{\sin^6 \theta}$ = $\cot^2\theta -\frac{\sin^4 \theta}{\sin^6 \theta}$ [From equation (i)] = $\cot^2\theta -\frac{1}{\sin^2 \theta}$ = $\cot^2\theta - \operatorname{cosec}^2\theta$ = $-1$ Hence, the correct answer is –1.
Question : Which decade is called the "Era of Decolonisation"?
Option 1: 1950s
Option 2: 1980s
Option 3: 1990s
Option 4: 1970s
Correct Answer: 1970s
Solution : The correct answer is 1970s.
The initial stages of widespread decolonisation in Africa started during this decade. Libya achieved independence as the first African nation during this decade in 1951, and the Algerian War started in 1954. Ghana became the first country in sub-Saharan
Question : What do you call the type of drugs that mimic natural messengers by switching on receptors?
Option 1: Antidepressants
Option 2: Agonist
Option 3: Depressants
Option 4: Antagonist
Correct Answer: Agonist
Solution : The correct answer is Agonist.
The drugs that mimic natural messengers by activating receptors are called agonists. These substances mimic the effects of endogenous neurotransmitters, or hormones, by binding to and activating specific receptors in the body. By doing so, agonists can elicit biological responses
Question : Directions: If a mirror is placed on Line AB, which of the answer figures is the right image of the given figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per mirror image properties, closer things appear close to the mirror in reflection. According to the information provided, the mirror is placed on the right side of the figure (on Line AB). So, the left side of the reflected image will appear as the right
Question : Annapurna Devi was known to practice which musical instrument?
Option 1: Surbahar
Option 2: Sarod
Option 3: Violin
Option 4: Bamboo Flute
Correct Answer: Surbahar
Solution : The correct option is Surbahar.
Renowned Indian classical musician Annapurna Devi was well-known for her skill on the Surbahar. The Surbahar is frequently employed in Hindustani classical music. Annapurna Devi was renowned for her proficiency and contributions to Indian classical music. She was not
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