Staff Selection Commission Combined Graduate Level Exam
Question : A, B, and C can do a piece of work in 30, 20, and 10 days respectively. A is assisted by B on one day and by C on the next day, alternately. How long would the work take to finish?
Option 1: $9 \frac{3}{8}$ days
Option 2: $4 \frac{8}{8}$ days
Option 3: $8 \frac{4}{13}$ days
Option 4: $3 \frac{9}{13}$ days
Correct Answer: $9 \frac{3}{8}$ days
Solution : Given: A, B, and C can do a piece of work in 30, 20, and 10 days, respectively. Total work = time × efficiency The total work of A, B, and C is LCM of (30, 20, 10) = 60 units Efficiency of
Question :
The sexual reproductive organs of aspergillus are:
Option 1:
Spermatium and oogonium
Option 2:
Antheridium and oogonium
Option 3: Spermatium and ascogonium
Option 4: Antheridium and ascogonium
Correct Answer: Antheridium and ascogonium
Solution : The correct option is Antheridium and ascogonium.
Aspergillus is a genus of filamentous fungus with branching hyphae and conidiophores that generate asexual spores known as conidia.
sexual reproduction in the Aspergillus genus may involve specialised structures such as ascogonia and antheridia.
Question : If $x=y+z$, then $x^{3}-y^{3}-z^{3}$ is:
Option 1: $0$
Option 2: $3xyz$
Option 3: $-3xyz$
Option 4: $1$
Correct Answer: $3xyz$
Solution : Given: $x=y+z$ Putting the value of $x$ in $x^{3}-y^{3}-z^{3}$ $=(y+z)^{3}-y^{3}-z^{3}$ $=y^{3}+z^{3}+3yz(y+z)-y^{3}-z^{3}$ $=3yz(y+z)$ $=3xyz$ Hence, the correct answer is $3xyz$.
Question : Skoda, which launched sedan 'Rapid', is an automobile manufacturer based in
Option 1: Japan
Option 2: France
Option 3: South Korea
Option 4: Czech Republic
Correct Answer: Czech Republic
Solution : The correct answer is the Czech Republic.
In 1859, Skoda Works was founded as an investment firm. Emil Skoda, a Czech engineer, founded it in Plzen, then in the Kingdom of Bohemia, in 1859. It was one of the biggest European industrial conglomerates
Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".
Give the tickets to (whomever) comes first.
(1) whoever
(2) whichever
(3) whatever
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The sentence can be improved using the first option.
"Whoever" is the relative pronoun that should be used here, which helps convey that the one who will come first will get the tickets.
The meanings of the other options are as follows:
Whichever is used
Question : Directions: In the following question, four number pairs are given. In each pair, the number on the left side of (-) is related to the number on the right side of (-) with some Logic/Rule/Relation. Three pairs are similar based on the same Logic/Rule/Relation. Select the odd one out from the given alternatives. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – operations on 13 such as adding /subtracting /multiplying etc. 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
Option 1: 12 – 142
Option 2: 8 – 62
Option 3: 4 – 14
Option 4: 14 – 192
Correct Answer: 14 – 192
Solution : Let's check each option – First option: 12 – 142→122 – 2 = 142 Second option: 8 – 62→82 – 2 = 62 Third option: 4 – 14→42 – 2 = 14 Fourth option: 14 – 192→142 – 2
Question : In an 1170 m race, Raman reaches the final point in 65 seconds and Mohan reaches the final point in 90 seconds. By how much distance does Raman beat Mohan?
Option 1: 325 m
Option 2: 300 m
Option 3: 375 m
Option 4: 350 m
Correct Answer: 325 m
Solution : Time taken by Raman to complete 1170 m = 65 seconds Time taken by Mohan to complete 1170 m = 90 seconds Distance by which Raman beats Mohan = $\frac{\text{Distance}\times \text{Time difference}}{\text{Time taken by Mohan}}$ = $\frac{1170\times (90-65)}{90}$ = $325$ m Hence, the correct
Question : Directions: Based on the position in the English alphabetical order, three of the following letter clusters are alike in some manner and one is different. Select the odd letter cluster.
Option 1: OIGE
Option 2: QKJH
Option 3: SMLJ
Option 4: WQPN
Correct Answer: OIGE
Solution : Let's check each option – First option: OIGE→O – 6 = I; I – 2 = G; G – 2 = E Second option: QKJH→Q – 6 = K; K – 1 = J; J – 2 = H Third option: SMLJ→S – 6 =
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at 1, 2 and 3 that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
The new book written by Vikram Seth has become very populous.
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 2
Solution : In this sentence, there is a vocabulary error. The word "populous" means densely populated with people, which does not fit the context of a book becoming popular.
"Popular" is the correct alternative because it describes that the book has been widely liked or admired.
Question : Which of the following states presented the "Child Budget" for the first time in March 2022 as a part of their annual financial plan?
Option 1: Andhra Pradesh
Option 2: Madhya Pradesh
Option 3: Uttar Pradesh
Option 4: Arunachal Pradesh
Correct Answer: Madhya Pradesh
Solution : The correct option is Madhya Pradesh
Madhya Pradesh presented the child budget for the years 2022–23. The Madhya Pradesh Finance Minister, Jagdish Devda, delivered the presentation. It applies to 220 distinct schemes. This is to teach kids under the age of eighteen.
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