Staff Selection Commission Combined Graduate Level Exam
Question : The area of two similar triangles is 324 cm2 and 289 cm2, respectively. What is the ratio of their corresponding altitudes?
Option 1: $\frac{17}{18}$
Option 2: $\frac{17}{19}$
Option 3: $\frac{19}{17}$
Option 4: $\frac{18}{17}$
Correct Answer: $\frac{18}{17}$
Solution : The ratio of their altitudes will be equal to the ratio of the square roots of their area. $\frac{A{_1}}{A{_2}} = \frac{h{_1}^2}{h{_2}^2}$ ⇒ $\frac{324}{289} = \frac{h{_1}^2}{h{_2}^2}$ ⇒ $\frac{h{_1}}{h{_2}}=\sqrt\frac{324}{289}$ ⇒ $\frac{h{_1}}{h{_2}} = \frac{18}{17}$ Hence, the correct answer is $\frac{18}{17}$.
Question : Find the value of the given expression. $\frac{4}{3} \tan^2 45^{\circ}+3 \cos^2 30^{\circ}-2 \sec^2 30^{\circ}-\frac{3}{4} \cot^2 60^{\circ}$
Option 1: $\frac{2}{3}$
Option 2: $\frac{3}{2}$
Option 3: $\frac{\sqrt{2}}{3}$
Option 4: $\frac{3}{\sqrt{2}}$
Correct Answer: $\frac{2}{3}$
Solution : Given: $\frac{4}{3} \tan^2 45^{\circ}+3 \cos^2 30^{\circ}-2 \sec^2 30^{\circ}-\frac{3}{4} \cot^2 60^{\circ}$ $=\frac{4}{3} \times 1 +3 ( \frac{\sqrt3}{2})^2-2 (\frac{2}{\sqrt3})^2-\frac{3}{4} (\frac{1}{\sqrt3})^2$ $= \frac{4}{3} \times 1^2 +\frac{9}4-\frac{8}3-\frac{3}{4}\times \frac{1}3$ $= \frac{4}3+\frac{9}4-\frac{8}3-\frac{1}4$ $= \frac{16+27-32-3}{12}$ $= \frac{2}3$ Hence, the correct answer is $\frac{2}3$.
Question : Directions: Pointing towards a girl, Rajan said, "She is the daughter of my mother's daughter". Then how is the girl related to Rajan?
Option 1: Daughter
Option 2: Niece
Option 3: Nephew
Option 4: Uncle
Correct Answer: Niece
Solution : As per the given information, the family tree will be as follows –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
So, from the above family tree, the girl is Rajan's niece. Hence, the second option is
Question : Directions: In this question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2), and (3) which may improve the sentence. Choose the correct alternative. In case, no improvement is needed your answer is (4).
The sales boy told the consumer not to touch the products on display.
(1) buyer
(2) shopper
(3) customer
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (3)
Solution : The correct option is the third option.
Customer is the appropriate word here, as it specifically refers to someone who is buying or shopping in the store, fitting the context perfectly while the other options don't fit perfectly.
Therefore, the correct sentence is, "The sales
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 : The second option is the correct answer.
Populous is an adjective that describes a place or region with a large population.
Populist is both a noun and an adjective. It means a person or an idea that is popular among the people.
Popular is an
Question : Select the option that can be used as a one-word substitute for the given group of words. Willing to take risks and try new ideas.
Option 1: Resolute
Option 2: Desperate
Option 3: Adventurous
Option 4: Mythical
Correct Answer: Adventurous
Solution : The one-word substitute for the given group of words is the third option.
Adventurous means to be willing to take risks, seek new experiences, and try new ideas. This word accurately represents the concept described in the group of words.
The meanings of the
Question : How many circles can be drawn that pass(es) through two fixed points?
Option 1: Infinite
Option 2: Only two
Option 3: One or two
Option 4: Only one
Correct Answer: Infinite
Solution : We can draw infinitely many circles passing through two given points. Starting from the two points as a diameter, we can draw a circle. As the circle is moving up it becomes a chord to the next circle with a bigger diameter. In such a
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".
Every member of the committee (1) / have been present (2) / at all the meetings. (3) / No Error (4)
Correct Answer: (2)
Solution : The error is in the second part of the sentence.
Explanation:
In this sentence, "Every member" is a singular subject, so the verb should also be singular. The correct verb form should be "has been", which agrees with the singular subject. The incorrect usage in
Question : Directions: In the following question, find the odd letter cluster from the given alternatives.
Option 1: AE
Option 2: CG
Option 3: JN
Option 4: MO
Correct Answer: MO
Solution : Let's check the options – First option: AE; A + 4 = E Second option: CG; C + 4 = G Third option: JN; J + 4 = N Fourth option: MO; M + 2 = O
So, the fourth option is different from the
Question : Prince Ellara conquered Sri Lanka in the second century BC. With which of the following dynasties of Dravida ruler was he associated ?
Option 1:
Chera
Option 2: Chola
Option 3: Pandya
Option 4: Pallava
Correct Answer: Chola
Solution : Correct Answer is Chola
Known as 'the Just King'. Elalan is a Tamil name that translates to "the one who rules the Ellai (boundary)." Elara is a unique figure in Sri Lankan history, with special resonance given the country's ongoing ethnic strife. Despite his status
The Question containing Inaapropriate or Abusive Words
Question lacks the basic details making it difficult to answer
Topic Tagged to the Question are not relevant to Question
Question drives traffic to external sites for promotional or commercial purposes
The Question is not relevant to User
And never miss an important update