Staff Selection Commission Combined Graduate Level Exam
Question : Directions: Three statements are given, followed by two conclusions numbered I and II. 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: All c is f. No f is t. All p is c. Conclusions: I. Some t is c. II. No p is t.
Option 1: Only conclusion II follows
Option 2: Only conclusion I follows
Option 3: Neither conclusion I nor II follows
Option 4: Either conclusion I or II follows
Correct Answer: Only conclusion II follows
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): Some t is c – From the Venn diagram, it is evident that all c is f and no f is t.
Question : Raju ate $\frac{3}{8}$th part of a pizza and Adam ate $\frac{3}{10}$th part of the remaining pizza. Then Renu ate $\frac{4}{7}$th part of the pizza that was left. What fraction of the pizza is still left?
Option 1: $\frac{5}{12}$
Option 2: $\frac{1}{4}$
Option 3: $\frac{1}{8}$
Option 4: $\frac{3}{16}$
Correct Answer: $\frac{3}{16}$
Solution : Let the total pizza be 1 part. Raju ate $\frac{3}{8}$th part of it. Remaining Part of the pizza $=(1 - \frac{3}{8})=\frac{5}{8}$ part Adam ate $\frac{3}{10}$th part of the remaining pizza. So, Adam ate $(\frac{5}{8} × \frac{3}{10}) = \frac{15}{80} = \frac{3}{16}$ part of the total pizza
Question : A is the centre of a circle whose radius is 8 units, and B is the centre of a circle whose diameter is 8 units. If these two circles touch externally, then the area of the circle with diameter AB is:
Option 1: $36\pi$ sq. units
Option 2: $64\pi$ sq. units
Option 3: $144\pi$ sq. units
Option 4: $256\pi$ sq. units
Correct Answer: $36\pi$ sq. units
Solution :
The distance between A and B is the sum of their radii = 8 + 4 = 12 units The diameter AB of the new circle is 12 units. The radius of the new circle is 6 units. The area of a circle,
Question : Solar energy is converted into chemical energy during :
Option 1: Combustion
Option 2: Transition
Option 3: Photosynthesis
Option 4: Fusion
Correct Answer: Photosynthesis
Solution : The correct option is Photosynthesis.
Photosynthesis is an essential process that allows plants to capture solar energy and transform it into chemical energy, which is then stored in the form of glucose. This process happens mostly in plant chloroplasts, especially in the chlorophyll-containing structures known
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).
Wealth is no doubts necessary for happiness in life.
(1) was no doubt necessary
(2) is no doubt necessary
(3) is no doubting necessary
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The correct answer is the second option.
In this sentence, the phrase "no doubts necessary" is not grammatically correct and doesn't convey the intended meaning. To express certainty that wealth is necessary for happiness, we should use the singular form of doubt. Thus, the
Hole wheat bread is good for health.
(1) Whole
(2) Healthy
(3) Holed
Correct Answer: (1)
Solution : The correct choice is the first option.
The correct word to use in this context is whole which means complete.
A hole means an opening or gap. Healthy is not a suitable replacement in this context, and holed is also incorrect.
Therefore, the correct sentence
Question : If h, c, v are respectively the height, curved surface area, and volume of a right circular cone, then the value of $3\pi v h^{3}-c^{2}h^{2}+9v^{2}$ is:
Option 1: 2
Option 2: –1
Option 3: 1
Option 4: 0
Correct Answer: 0
Solution : Let $r$ be the radius, $h$ be the height, $l$ be the slant height and $c$ be the curved surface area of the cone. We know, $l=\sqrt{r^2+h^2},v=\frac{1}{3}\pi r^2 h,$ and $c=\pi r l$ According to the question: $3\pi v h^{3}-c^{2}h^{2}+9v^{2}$ = $3\pi ×\frac{1}{3}\pi r^2 h×
Question : Select the most appropriate option to fill in the blank. Keats and Shelly were poets of the same period; in other words, they were _____.
Option 1: contemporaries
Option 2: co-writers
Option 3: colleagues
Option 4: associates
Correct Answer: contemporaries
"Contemporaries" mean persons living in the same time period and is the appropriate choice for this sentence. Keats and Shelly were both living during the same time period, which makes them "contemporaries".
"Colleagues", "co-workers", and "associates" mean those
Question : Direction: A series is given below with one term missing. Choose the correct alternative from the given ones that will complete the series.
CAR, GCO, KEL, OGI, ?
Option 1: SIK
Option 2: SIF
Option 3: TIK
Option 4: TIL
Correct Answer: SIF
Solution : Given: CAR, GCO, KEL, OGI, ?
First letter of the series → C + 4 = G; G + 4 = K; K + 4 = O; O + 4 = S
Second letter of the series → A + 2 = C; C +
Question : Directions: R + S means R is the daughter of S; R = S means R is the father of S; R ÷ S means R is the wife of S; R × S means R is the brother of S. E ÷ F × J + L = M, then how is L related to E?
Option 1: Father
Option 2: Wife
Option 3: Father-in-law
Option 4: Brother
Correct Answer: Father-in-law
Solution : Given: J + L means J is the daughter of L. L = M means L is the father of M. E ÷ F means E is the wife of F. F × J means F is the brother of J.
As per the given
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