Staff Selection Commission Combined Graduate Level Exam
Question : Directions: In the following question, find the odd number from the given alternatives.
Option 1: 49
Option 2: 25
Option 3: 8
Option 4: 36
Correct Answer: 8
Solution : Let's check the options – First option: 49; 49 = (7)2 Second option: 25; 25 = (5)2 Third option: 8; 8 is not a square of any number. Fourth option: 36; 36 = (6)2
The third option does not follow a similar
Question : If $(x-\frac{1}{x})^2=\sqrt3$, then the value of $(x^6+\frac{1}{x^6})$ equals:
Option 1: 90
Option 2: 100
Option 3: 110
Option 4: 120
Correct Answer: 110
Solution : Given: $(x-\frac{1}{x})^2=\sqrt3$ Squaring both sides, we get, $⇒(x-\frac{1}{x})^2=(\sqrt3)^2$ $⇒x^2+\frac{1}{x^2}–2=3$ $⇒x^2+\frac{1}{x^2}=5$ Cubing on both sides, we get, $⇒(x^2+\frac{1}{x^2})^3=5^3$ $⇒x^6+\frac{1}{x^6}+3(x^2+\frac{1}{x^2})=125$ $⇒x^6+\frac{1}{x^6}+3\times5=125$ $⇒x^6+\frac{1}{x^6}=125-15$ $\therefore x^6+\frac{1}{x^6}=110$ Hence, the correct answer is 110.
Question : Who among the following won the Padma award for his efforts on S&T-based innovative ways of creating Naga folk music?
Option 1: Moa Subong
Option 2: C. V. Raju
Option 3: Baba Balia
Option 4: T. Senka Ao
Correct Answer: Moa Subong
Solution : The correct option is Moa Subong.
Moa Subong won the Padma Shri award for 2023 for his efforts on S&T-based innovative ways of creating Naga folk music. He is a grassroots innovator from Dimapur, Nagaland, who has developed a new wind musical instrument
Question : Directions: A sentence or a part of the sentence is printed in bold. Below are alternatives to the bold part that may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose "No Improvement".
Once a farmer was pulling his cart full of vegetables uphill to the market, he saw a man sit the roadside.
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 2
Solution : The sentence can be improved using the second option,
The correct preposition to use in this context is "by". When describing someone sitting near or beside the roadside, the appropriate preposition is "by".
Therefore, the correct sentence should be, "Once a farmer was pulling
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per mirror image properties, closer things appear closer to the mirror in reflection. According to the given figure, when the mirror is placed on the line MN, the left side and the right side get interchanged, i.e., the left side becomes the right and the
Question : Select the most appropriate option to fill in the blank.
The movie was released _________ expected.
Option 1: later than
Option 2: most later than
Option 3: later then
Option 4: more later than
Correct Answer: later than
Solution : The correct choice is the first option.
Explanation:
When comparing the release time of the movie to the expected time, the appropriate comparative adverb is "later than". This construction indicates that the movie was released after the anticipated or expected time.
Therefore, the correct
Question : Which town / city in India has got a tower ( minaar ) named after Muhammad Ali Jinnah ?
Option 1: Mumbai .
Option 2: Aligarh .
Option 3: Calicut .
Option 4: Gantur.
Correct Answer: Gantur.
Solution : Correct Answer is Guntur
At Mahatma Gandhi Road in Guntur, Andhra Pradesh, a tower honors Muhammad Ali Jinnah, the father of Pakistan.The tower stands tall on six pillars and opens to a dome. It was constructed during the time before independence.One of the few Islamic-style
Question : Direction: In the following question, a statement is given followed by two conclusions / Assumptions. You have to consider the statement to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow from the given statement.
Statement
A friend in need is a friend indeed.
Conclusion
I. All are friends in good times.
II. Enemies in bad times are not friends.
Option 1: Neither Conclusion I nor II follows.
Option 2: Only Conclusion I follows.
Option 3: Only Conclusion II follows.
Option 4: Both Conclusions I and II follow.
Correct Answer: Neither Conclusion I nor II follows.
Solution : Given:
Now, let's consider the conclusions:
I. All are friends in good times. This conclusion does not necessarily follow from the given statement. The statement "A friend in need is a
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. 25 * 2 * 220 * 11 * 43
Option 1: +, –, ×, =
Option 2: +, –, ÷, =
Option 3: +, +, ÷, =
Option 4: –, +, ÷, =
Correct Answer: –, +, ÷, =
Solution : Given: 25 * 2 * 220 * 11 * 43
Replace * with the mathematical signs and solve the equations one by one. Let's check the given options – First option: +, –, ×, = ⇒ 25 + 2 – 220 ×
Question : Let $x=\frac{\sqrt{13}+\sqrt{11}}{\sqrt{13}-\sqrt{11}}$ and $y=\frac{1}{x}$, then the value of $3x^{2}-5xy+3y^{2}$ is:
Option 1: 1717
Option 2: 1177
Option 3: 1771
Option 4: 1171
Correct Answer: 1717
Solution : The value of $x=\frac{\sqrt{13}+\sqrt{11}}{\sqrt{13}-\sqrt{11}} $ After rationalizing this, we get, $ =\frac{(\sqrt{13}+\sqrt{11})(\sqrt{13}+\sqrt{11})}{(\sqrt{13}-\sqrt{11})(\sqrt{13}+\sqrt{11})} $ $=\frac{(13+2\sqrt{143}+11)}{(13-11)} =\frac{24+2\sqrt{143}}{2} =12+\sqrt{143}$ The value of $y=\frac{1}{x} =\frac{1}{12+\sqrt{143}} $ After rationalizing this, we get, $ =\frac{(12-\sqrt{143})}{(12+\sqrt{143})(12-\sqrt{143})} =\frac{(12-\sqrt{143})}{1} = 12-\sqrt{143}$ $⇒3x^{2}-5xy+3y^{2}$ $=3(12+\sqrt{143})^{2}-5(12+\sqrt{143})(12-\sqrt{143})+3(12-\sqrt{143})^{2}$ $=3(144+24\sqrt{143}+143)-5(144-143)+3(144-24\sqrt{143}+143)$ $=3(287+24\sqrt{143})-5+3(287-24\sqrt{143})$ $=861+72\sqrt{143}-5+861-72\sqrt{143}$ $=1717$ Therefore, the value of $3x^{2}-5xy+3y^{2}$ is 1717.
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