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: Some boats are ships. All ships are yachts. All yachts are barges. Conclusions: I. Some barges are ships. II. Some barges are boats. III. Some yachts are boats.
Option 1: Only conclusions II and III follow
Option 2: Only conclusions I and III follow
Option 3: All conclusions follow
Option 4: Only conclusions I and II follow
Correct Answer: All conclusions follow
Solution : According to the statements, the following Venn diagram can be drawn –
Let's analyse the conclusions – Conclusion I: Some barges are ships – From the Venn diagram, it is evident that the circle that represents ships is overlapped by the circle that
Question : Directions: If FRIEND is coded as HTKGPF, then REVEAL will be coded as?
Option 1: TGXFCN
Option 2: TGXNGC
Option 3: TXGNCG
Option 4: TGXGCN
Correct Answer: TGXGCN
Solution : Given: FRIEND is coded as HTKGPF.
Like, FRIEND is coded as HTKGPF – F + 2 = H; R + 2 = T; I + 2 = K; E + 2 = G; N + 2 = P; D + 2 = F Similarly, REVEAL
Question : Find the fourth proportional to the numbers 17, 272, and 19.
Option 1: 332
Option 2: 323
Option 3: 403
Option 4: 304
Correct Answer: 304
Solution : Fourth proportional to the numbers 17, 272 and 19 = $\frac{272×19}{17}$ = 304 Hence, the correct answer is 304.
Question : Direction: In the following question, select the related number from the given alternatives.
49 : 56 :: 36 : ?
Option 1: 52
Option 2: 44
Option 3: 42
Option 4: 43
Correct Answer: 42
Solution : Given: 49 : 56 :: 36 : ?
Here,
7x7= 49
7x8= 56
Similarly, 6x6= 36
6x7= 42
Hence, third option is correct.
Question : If $x^{2}-3x+1=0$, then the value of ($x + \frac{1}{x}$) is:
Option 1: 1
Option 2: 0
Option 3: 3
Option 4: 2
Correct Answer: 3
Solution : Given: $x^{2}-3x+1=0$ ⇒ $x^{2}+1=3x$ ⇒ $\frac{x^{2} +1}{x}= 3$ (dividing both sides by $x$) $\therefore x + \frac{1}{x} = 3$ Hence, the correct answer is 3.
Question : If the profit from selling an article for Rs. 425 is the same as the loss from selling it for Rs. 355, then the cost price of the article is:
Option 1: Rs. 410
Option 2: Rs. 380
Option 3: Rs. 400
Option 4: Rs. 390
Correct Answer: Rs. 390
Solution : Let the cost price of the article be Rs. x. According to the given information, Profit = loss ⇒ 425 – x = x – 355 ⇒ x + x = 425 + 355 ⇒ 2x = 780 $\therefore$ x = 390 Hence, the
Question : Comprehension: In the following passage, some words have been deleted. Fill in the blanks with the help of the options given. Select the most appropriate option for each number. The air has become very dirty in (1)______ parts of the world. This is of course (2)______ to your health. Experts say many people die (3)______ it each year. There is a new study on (4)______ pollution which comes from the experts of the World Health Organization (WHO) (5)______ is an agency of the United Nations. If you (6)______ unhealthy air for a long period of time, you could (7)______ sick. Air pollution has been linked to many diseases (8)______stroke and cancer. The WHO says that seven million (9)______ die each year as a result of the (10)______ air. Question: Select the most appropriate option to fill in the blank no. 3.
Option 1: through
Option 2: by
Option 3: from
Option 4: with
Correct Answer: from
Solution : The right choice is the third option.
Explanation: In the sentence, the word from is a preposition that establishes a relationship between the action (die) and its cause (it). So, grammatically, "from" connects the verb to the source or
Question : Which of the following coals contains ninety per cent carbon?
Option 1: Anthracite
Option 2: Bitumen
Option 3: Lignite
Option 4: Peat
Correct Answer: Anthracite
Solution : The correct answer is Anthracite.
Question : Saving is that portion of money income that is
Option 1: spent for the development of industries
Option 2: not spent on consumption
Option 3: spent on health and education
Option 4: spent for consumer durables
Correct Answer: not spent on consumption
Solution : The correct answer is not spent on consumption.
Saving is defined as the share of income that is not spent on current consumption. It refers to the quantity of money set aside for future usage. Savings can be used for several
Question : Directions: Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series. DY_GMI_ _YTG _ ILDYT _ MILD _ TGM _ L
Option 1: TLDGMIY
Option 2: TDLGMYI
Option 3: TLDMGYI
Option 4: TLDYMIG
Correct Answer: TLDMGYI
Solution : Given: DY_GMI_ _YTG _ ILDYT _ MILD _ TGM _ L
To fill the series we have to divide the series – DY _ GMI _ / _ YTG _ IL / DYT _ MIL / D _ TGM _ L
Let's check each option
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