Staff Selection Commission Combined Graduate Level Exam
Question : There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there?
Option 1: 50
Option 2: 30
Option 3: 60
Option 4: 20
Correct Answer: 60
Solution : Given: There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200.
Here,
Let x be the number of deer. Peacock count = y Given x + y = 80
Peacocks have two legs, but
Question : Public opinion is
Option 1: The opinion of the majority
Option 2: The opinion of the people on political matters
Option 3: Opinion of the citizens of the country
Option 4: The opinion based on reasoning which is for the welfare of the whole society
Correct Answer: The opinion of the majority
Solution : The Correct Answer is- The opinion of the majority
The public's ability to express their displeasure with politicians who refuse to consider their opinions and remove them from office can serve as a check on leadership. The general consensus on a
Question : Directions: In a certain code language, PLANNED is written as RNCNPGF, and PROMOTE is written as RTQMQVG. How will IMPROVE be written in that language?
Option 1: KORTQXG
Option 2: KORRQXG
Option 3: KOQRQXG
Option 4: KORTOXG
Correct Answer: KORRQXG
Solution : Given: PLANNED is written as RNCNPGF, and PROMOTE is written as RTQMQVG.
Add 2 to the place value of each letter except the middle letter and here the middle letter is constant, to get the required code – P + 2 = R; L +
Question : Select the most appropriate meaning of the underlined idiom in the given sentence. A fair-weather friend can never be trusted in the times of exigency.
Option 1: A close friend
Option 2: A pen friend
Option 3: A selfish friend
Option 4: An old acquaintance
Correct Answer: A selfish friend
Solution : The third option is the correct choice.
The idiom fair-weather friend refers to a person who is only a friend or offers support when things are going well or when it's convenient for them. They tend to disappear or show their true colours
Question : The speed of the boat down the stream is 125% of the speed in still water. If the boat takes 30 minutes to cover 20 km in still water, then how much time (in hours) will it take to cover 15 km upstream?
Option 1: $\frac{3}{4}$
Option 2: $\frac{1}{2}$
Option 3: $\frac{1}{4}$
Option 4: $1$
Correct Answer: $\frac{1}{2}$
Solution : Speed of boat in still water = $\frac{20}{\frac{30}{60}}= 40$ km/hr Speed of boat downstream = $50$ km/h (As it is $125$% more than the speed of the boat in still water) Speed of current = $50 - 40$ = $10$ km/hr The time it will
Question : Let $a b, a \neq b$, is a 2-digit prime number such that ba is also a prime number. The sum of all such numbers is:
Option 1: 407
Option 2: 418
Option 3: 396
Option 4: 374
Correct Answer: 418
Solution : Given, ab is a 2-digit prime number a ≠ b The list of such prime numbers is 13, 31, 17, 71, 37, 73, 79, 97. The Sum of these numbers = 13 + 31 + 17 + 71 + 37 + 73 + 79 +
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".
You have been doing (1) / your homework (2) / regularly? (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The error lies in the first part of the sentence.
To form an interrogative sentence in the present perfect continuous tense, we use the structure "have/has + subject + been + v-ing".
So, ''you have'' should be replaced with ''have you'' to ask
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error."
Mobile phones are so importance these days that they are no longer luxury items but have become a necessity.
(1) a necessity
(2) so importance these days
(3) no longer
(4) No error
Correct Answer: (2)
Solution : The error lies in the second option.
The word "importance" is a noun while "important" is an adjective. In this context, we want to describe mobile phones as being essential or significant, which requires the adjective "important".
Therefore, the correct sentence is "Mobile phones
Question : Directions: Three of the following four triads are alike in a certain way as they are formed by performing the same mathematical operations among themselves and thus form a group. Which triad does NOT belong to that group?
Option 1: 11 : 21 : 121
Option 2: 7 : 15 : 49
Option 3: 2 : 3 : 4
Option 4: 9 : 17 : 81
Correct Answer: 7 : 15 : 49
Solution : Let's check each option – First option: 11 : 21 : 121→(11 × 2) – 1 = 22 – 1 = 21; 112 = 121 Second option: 7 : 15 : 49→(7 × 2) – 1 = 14 – 1
Question : Identify the segment in the sentence which contains a grammatical error. If there is no error, select ‘No error’. You should tell these children to complete their projects himself.
Option 1: You should tell
Option 2: No error
Option 3: these children to complete
Option 4: their project himself
Correct Answer: their project himself
Solution : The correct choice is the fourth option.
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