Staff Selection Commission Combined Graduate Level Exam
Question : Directions: Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: l. All phones are laptops. ll. All pen drives are phones. lll. All pen drives are pens. Conclusions: I. All pens are phones. II. All laptops are pens. III. All pen drives are laptops.
Option 1: Only conclusion III follows
Option 2: Only conclusions I and II follow
Option 3: Only conclusions II and III follow
Option 4: Only conclusions I and III follow
Correct Answer: Only conclusion III follows
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): All pens are phones – From the Venn diagram, it is evident that the circles representing pens and phones overlap each other
Question : If x + y = 7 and xy = 19, calculate the value of x2 + y2.
Option 1: 17
Option 2: 12
Option 3: 11
Option 4: 19
Correct Answer: 11
Solution : Given: x + y = 7 and xy = 19. On squaring both sides of the equation x + y = 7, we get, (x + y)2 = 72 ⇒ (x2 + y2 + 2xy) = 49 ⇒ x2 +
Question : The greater of the two numbers whose product is 900 and whose sum exceeds their difference by 30 is:
Option 1: 60
Option 2: 75
Option 3: 90
Option 4: 100
Correct Answer: 60
Solution : Let the numbers be $x$ and $y$ where $x > y$. According to the question, ⇒ $(x + y) – (x – y) = 30$ ⇒ $x + y–x + y = 30$ ⇒ $y = \frac{30}{2} = 15$ Also, $xy = 900$ ⇒ $15x
Question : In an examination, 92% of the students passed and 480 students failed. If so, how many students appeared in the examination?
Option 1: 5,800
Option 2: 6,200
Option 3: 6,000
Option 4: 5,000
Correct Answer: 6,000
Solution : Given: In an examination, 92% of the students passed and 480 students failed. Let the number of the students who appeared in the examination = 100%. The number of the students failed = 100 – 92 = 8%. 8% = 480 The number of students
Question : Directions: From the given option figures, select the one in which the question figure is embedded.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Since there is no restriction on the rotation of the figure, we will check all possible angles where the question figure can fit itself in all the given option figures. The question figure is embedded only in the first option figure.
Hence, the first option is
Question : The cost price of an article is decreased by 10% and then increased by 20%. If the final price is INR 540, then the original cost price is:
Option 1: INR 500
Option 2: INR 650
Option 3: INR 550
Option 4: INR 600
Correct Answer: INR 500
Solution : Let the cost price be INR $x$. The cost price first decreased by 10%, then increased by 20%. So, $\frac{x×90×120}{100×100}=540$ ⇒ $108x=54000$ ⇒ $x=500$ Therefore, the original cost price = INR 500 Hence, the correct answer is INR 500.
Question : Directions: A gets more marks than B but less than C. D gets lesser marks than E but more than A. If C gets less than D then who amongst A, B, C, D, and E gets the highest marks?
Option 1: C
Option 2: D
Option 3: E
Option 4: B
Correct Answer: E
Solution : Given: A gets more marks than B but less than C. B < A < C D gets lesser marks than E but more than A A < D < E C gets less than D. C < D By concluding all the given information,
Question : Who is thr highest civil servant of the Union Government?
Option 1: Attorney General
Option 2: Cabinet secretary
Option 3: Home secretary
Option 4: Principal secretary to the Prime Minister
Correct Answer: Cabinet secretary
Solution : Correct Answer is Cabinet secretary
A civil servant (also called a public employee) is an worker of a public sector undertaking employed by a public sector department or agency of the government of India. A civil servant works for the central government and state
Question : Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
The child is the father of the man. Childhood is a (1)______ of what one is going to be when one (2)______ maturity. The natural instincts of a man are (3)______ in his childhood. Time modifies them but cannot (4)______ them. History contains numerous examples of great men who gave (5)______ of their future when they were children. A child’s mind is (6)______ and flexible. The mould he receives before his clay (7)______ becomes his permanent mark. The values and standards of (8)______ which will determine his life as a man (9)______ in childhood itself. There may be certain (10)______ of course. A bright morning may end in a storm!
Question:
Select the most appropriate option to fill in the blank no. 3.
Option 1: distributed
Option 2: contributed
Option 3: disposed
Option 4: determined
Correct Answer: determined
Solution : The correct choice is the fourth option.
Determined means having made a firm decision and being resolved not to change it. It helps convey the intended meaning that the natural instincts of a man are made in his childhood.
Question : The average mark obtained by a class of 60 students is 65. The average marks of half of the students were found to be 85. The average marks of the remaining students are:
Option 1: 35
Option 2: 45
Option 3: 55
Option 4: 65
Correct Answer: 45
Solution : Given that the average mark of 60 students is 65. Total marks = (60 × 65) = 3900 The average mark of half of the students = 85 Therefore, total marks of 30 students = 30 × 85 = 2550 Total marks of the remaining
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