Staff Selection Commission Combined Graduate Level Exam
Question : A thief running at a speed of ‘$x$’ km/hr is chased by a policeman running at a speed of 10 km/hr. If the thief is ahead by 100 metres, the policeman catches the thief after 3 minutes. At what speed is the thief running (‘$x$’ being the unknown speed)?
Option 1: 4 km/hr
Option 2: 8 km/hr
Option 3: 10 km/hr
Option 4: 6 km/hr
Correct Answer: 8 km/hr
Solution : Let the speed of the thief be $x$ km/hr. Speed of the policeman = 10 km/hr Time taken by a policeman to catch the thief = 3 minutes = $\frac{1}{20}$ hr Relative distance to be covered by policeman = 100 metres = 0.1 km
Question : Directions: F is the brother of A. C is the daughter of A. K is the sister of F. G is the brother of C. Who is the uncle of G?
Option 1: A
Option 2: C
Option 3: K
Option 4: F
Correct Answer: F
Solution : As per the given information, the family tree will be as follows –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
So, from the above family tree, F is the uncle of G. Hence, the fourth option
Question : A sentence has been given a blank to be filled with an appropriate word. Choose the correct alternative.
To make your own gargle, _______ half a teaspoon of salt in a glass of lukewarm or partly cooled boiled water.
Option 1: cease
Option 2: cast
Option 3: consolidate
Option 4: dissolve
Correct Answer: dissolve
Solution : The fourth option is the correct choice.
When making a gargle solution, you want the salt to be thoroughly mixed or blended into the water, forming a solution. The word, dissolve specifically refers to the process of mixing a solid substance (like salt) into a
Question : The salt concentration (measured as salinity in parts per thousand) is greater than __________ in hyper-saline lagoons.
Option 1: 50
Option 2: 100
Option 3: 150
Option 4: 200
Correct Answer: 100
Solution : The correct option is 100.
Hypersaline lagoons have much higher salinity levels than the open ocean, often exceeding 100 ppt. This high salt content results in unique chemical composition and diverse sediment forms. The average salinity level in ocean water is around 35 ppt,
Question : Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully: Estella had hardly heard the news (after) she began to weep.
Option 1: while
Option 2: well
Option 3: than
Option 4: when
Correct Answer: when
In the sentence, the word after indicates a temporal relationship, suggesting that one action occurred subsequent to another.
In this case, when serves this purpose effectively, indicating that Estella's weeping started immediately or almost immediately upon hearing the
Question : The largest five-digit number which when divided by 7, 9, and 11, leaves the same remainder as 3 in each case, is:
Option 1: 95840
Option 2: 98685
Option 3: 96720
Option 4: 99795
Correct Answer: 99795
Solution : The number which is divisible by 7, 9, and 11 should be divisible by LCM of (7, 9, 11) = 7 × 9 × 11 = 693 Largest 5-digit number = 99999 Quotient when 99999 is divided by 693 = 144 Largest 5 digit number
Question : The following sentence has been split into four segments. Identify the segment that contains a grammatical error. Everybody stared / when me / entered the / drawing room.
Option 1: when me
Option 2: Everybody stared
Option 3: drawing room
Option 4: entered the
Correct Answer: when me
Solution : The correct choice is the first option.
Explanation: There is an error in the segment when me. The error lies in the use of the pronoun. After the conjunction when the correct pronoun to use is I (subject form) instead of
Question : Directions: Select the Venn diagram that best illustrates the relationship between the following classes. Player, Captain, and Coach
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As we all know the best player during the match is appointed as the captain of the team but the player/captain during the match cannot be the coach. On the other hand, the coach is generally an experienced or retired player. Therefore, the circle of the
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".
No sooner (1) / they had received the guests (2) / than they began entertaining them. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
The reason is that no sooner...than is a correlative conjunction, and it should be followed by the auxiliary verb (had) and then the subject (they) before the main verb (received), i.e., the law of inversion
Question : The table given below shows the number of officers working in six companies.
What is the total number of officers working in all the companies?
Option 1: 2900
Option 2: 2600
Option 3: 3400
Option 4: 3100
Correct Answer: 3100
Solution : Number of officers working in the company D = 400 Number of officers working in the company E = 500 Number of officers working in the company F = 600 Number of officers working in the company G = 350 Number of officers working in
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