Staff Selection Commission Combined Graduate Level Exam
Question : In a hotel, there are 120 staff members. Their average weight is 62.5 kg. When one of the staff members leaves the hotel, the average weight is reduced by 250 g. Find the weight of the staff member who left the hotel.
Option 1: 64.25 kg
Option 2: 78.75 kg
Option 3: 90.50 kg
Option 4: 92.25 kg
Correct Answer: 92.25 kg
Solution : Total number of staff members initially = 120 Their average weight = 62.5 kg We know, Average = $\frac{\text{Sum of weights}}{\text{Number of people}}$ So, $62.5 = \frac{\text{Sum of weights}}{120}$ or, Sum of weights = 7500 kg After a staff member left, the number of
Question : If $\tan 40^{\circ}=\alpha$, then find $\frac{\tan 320^{\circ}-\tan 310^{\circ}}{1+\tan 320^{\circ} \cdot \tan 310^{\circ}}$.
Option 1: $\frac{1-\alpha^2}{\alpha}$
Option 2: $\frac{1+\alpha^2}{2 \alpha}$
Option 3: $\frac{1-\alpha^2}{2 \alpha}$
Option 4: $\frac{1+\alpha^2}{a}$
Correct Answer: $\frac{1-\alpha^2}{2 \alpha}$
Solution : $\tan 40^{\circ}=\alpha$ $\frac{\tan 320^{\circ}-\tan 310^{\circ}}{1+\tan 320^{\circ} \cdot \tan 310^{\circ}}$ $= \frac{\tan(360°-40°) - \tan(270°+40°)}{1+\tan(360°-40°)\cdot\tan(270°+40°)}$ $= \frac{-\tan 40° + \cot 40°}{1-\tan40° \cdot\cot 40°}$ $= \frac{-\alpha + \frac{1}{\alpha}}{1+\alpha×\frac{1}{\alpha}}$ $= \frac{-\alpha^2 + 1}{2\alpha}$ $=\frac{1-\alpha^2}{2\alpha}$ Hence, the correct answer is $\frac{1-\alpha^2}{2\alpha}$.
Question : The Delhi Municipal Corporation (Amendment) Bill seeks to unify how many municipal corporations into a single one.
Option 1: Four
Option 2: Three
Option 3: Two
Option 4: Five
Correct Answer: Three
Solution : The correct answer is Three.
On March 30, 2022, the Lok Sabha approved a measure that aims to combine Delhi's three municipal corporations into one. The purpose of the law is to guarantee a strong framework for coordinated planning, efficient resource use, and enhanced
Question : Select the correct active form of the given sentence.
His services were recognised by his community.
Option 1: His community recognised his services.
Option 2: His community is recognising his services.
Option 3: His community recognises his services.
Option 4: His community has recognised his services.
Correct Answer: His community recognised his services.
Solution : The correct choice is the first option.
Active voice is the voice where the subject performs the action. When transforming a passive voice sentence into an active voice sentence the object of the passive voice becomes the subject of the active
Question : Select the most appropriate collocation to substitute the underlined word in the given sentence.
The intern should take a right choice in choosing the right job for her.
Option 1: rake a right choice
Option 2: make a right choice
Option 3: fix a right choice
Option 4: take the right choice
Correct Answer: make a right choice
Solution : The second option is the correct choice.
Explanation: We use "make a choice" to express the act of selecting or deciding. "Take a choice" is not a standard phrase, making "make a right choice" the correct and appropriate phrase for expressing
Question : What is the value of $\frac{\tan 45^{\circ}-\tan 15^{\circ}}{1+\tan 45^{\circ} \tan 15^{\circ}}$?
Option 1: $\sqrt{3}$
Option 2: $\frac{1}{\sqrt{2}}$
Option 3: $\frac{1}{\sqrt{3}}$
Option 4: ${\sqrt{2}}$
Correct Answer: $\frac{1}{\sqrt{3}}$
Solution : $\frac{\tan 45^{\circ}-\tan 15^{\circ}}{1+\tan 45^{\circ} \tan 15^{\circ}}$ $= \tan (45^{\circ}-15^{\circ})$ $=\tan 30^{\circ}$ $= \frac{1}{\sqrt3}$ Hence, the correct answer is $\frac{1}{\sqrt3}$.
Question : Select the most appropriate synonym of the given word.
Judicious
Option 1: Beautiful
Option 2: Graceful
Option 3: Thoughtful
Option 4: Plentiful
Correct Answer: Thoughtful
Solution : The correct choice is the third option.
Judicious refers to having or showing good judgement, discretion, or wisdom in making decisions or taking action. Thoughtful shares a similar connotation of being considerate, careful, and showing good judgement, which aligns well with the meaning of
Question : If $x=8(\sin \theta+\cos \theta)$ and $y=9(\sin \theta-\cos \theta)$, then the value of $\frac{x^2}{8^2}+\frac{y^2}{9^2}$ is:
Option 1: 4
Option 2: 6
Option 3: 8
Option 4: 2
Correct Answer: 2
Solution : Given: $x=8(\sin \theta+\cos \theta)$ and $y=9(\sin \theta-\cos \theta)$ Now, $\frac{x^2}{8^2}+\frac{y^2}{9^2}$ = $\frac{[8(\sin \theta+\cos \theta)]^2}{8^2}+\frac{[9(\sin \theta-\cos \theta)]^2}{9^2}$ = $\frac{64(\sin^2 \theta+\cos^2 \theta+2\sin \theta\cos \theta)}{64}+\frac{81(\sin^2 \theta+\cos^2 \theta-2\sin \theta\cos \theta)}{81}$ = $1+2\sin \theta\cos \theta +1-2\sin \theta\cos \theta$ = $2$ Hence, the correct answer is 2.
Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer.
Rahul was surprises to see a _________ smile on Tarun's face.
Option 1: Ugly
Option 2: Symbolic
Option 3: Opaque
Option 4: Genuine
Correct Answer: Genuine
Solution : The sentence begins by talking about Rahul's reaction, which is "surprised." To complete the sentence correctly, we need a word that describes the kind of smile on Tarun's face. The word "genuine" fits perfectly in the context, indicating that the smile on Tarun's face was
Question : Select the most appropriate antonym of the given word. ENDORSE
Option 1: Affirm
Option 2: Support
Option 3: Advocate
Option 4: Renounce
Correct Answer: Renounce
Solution : The correct choice is the fourth option.
The appropriate antonym of renounce is endorse because it means to support or approve, while "renounce" means to formally reject or disapprove, providing a clear contrast in terms of approval or endorsement.
The meanings of the other options
The Question containing Inaapropriate or Abusive Words
Question lacks the basic details making it difficult to answer
Topic Tagged to the Question are not relevant to Question
Question drives traffic to external sites for promotional or commercial purposes
The Question is not relevant to User
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