Staff Selection Commission Combined Higher Secondary Level Exam
Question : What is the reflection of the point $(4,7)$ over the line $y=–1$?
Option 1: $(–6,7)$
Option 2: $(–4,–9)$
Option 3: $(4,–9)$
Option 4: $(–6,–7)$
Correct Answer: $(4,–9)$
Solution : Given: The point is $(4,7)$ and the line is $y=–1$. The formula for the reflection of the point $(x_1, y_1)$ over the line $ax+by+c=0$ is $\frac{x–x_1}{a}=\frac{y–y_1}{b}=\frac{–2(ax_1+by_1+c)}{a^2+b^2}$. Here, are the values of $a=0$, $b=1$, and $c=1$. $(x–4)=0$ and $(y–7)=\frac{–2(7+1)}{1}$ ⇒ $x=4$ and $y=–16+7$ ⇒ $x=4$ and
Question :
Directions: In the following question, select the related number from the given alternatives. 64 : 4 :: ? : 9
Option 1: 18
Option 2: 81
Option 3: 729
Option 4: 144
Correct Answer: 729
Solution : Given: 64 : 4 :: ? : 9
Like, 64 : 4→43 = 64 Similarly, follow the same pattern for (?) : 9→93 = 729
So, 729 is related to 9. Hence, the third option is correct.
Question : Who introduced 'doctrine of lapse' ?
Option 1: Lord Wellesley
Option 2: Lord Curzon
Option 3: Lord Dalhousie
Option 4: Lord Lytton
Correct Answer: Lord Dalhousie
Solution : The correct option is - Lord Dalhousie
The Doctrine of Lapse was introduced by Lord Dalhousie, who served as the Governor-General of India from 1848 to 1856. It allowed the British to annex a princely state if it lacked a natural heir, and the
Question : The ratio of the speed of the boat in still water to the speed of the stream is 8 : 3 and the boat can travel 22 km downstream in 24 minutes. Then, how much time will the boat take to cover 50 km upstream?
Option 1: 4 hours
Option 2: 2.5 hours
Option 3: 3 hours
Option 4: 2 hours
Correct Answer: 2 hours
Solution : The ratio of the speed of the boat in still water to the speed of the stream is 8 : 3. The boat can travel 22 km downstream in 24 minutes. Let the speed of the boat in still water be 8x and the
Question : Directions: In the following question below, some statements are followed by some conclusions. Taking the given statements to be true, even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows from the given statements. Statements: I. Only first-division holders are admitted. II. Ram is a first-division holder. Conclusions: I. Ram is admitted. II. Only Ram is admitted.
Option 1: Conclusion I follows
Option 2: Conclusion II follows
Option 3: Neither I nor II follows
Option 4: Both I and II follow
Correct Answer: Conclusion I follows
Solution : According to the above given statement,
Conclusion I: Ram is admitted – It is given that only first-division holders are admitted, and Ram is a first-division holder. So, Ram is admitted. Therefore, this conclusion logically follows. Conclusion II: Only Ram is admitted –
Question : How many islands are there in Lakshadweep?
Option 1: 17
Option 2: 27
Option 3: 36
Option 4: 47
Correct Answer: 36
Solution : The correct answer is 36.
Lakshadweep Island is the smallest union territory of India and is located in the Arabian Sea on the Western Coast of India. There are 36 islands in the Lakshadweep archipelago. They are coral islands and are rich in diversity. Among
Question : If $\sec \theta+\tan \theta=5$, then $\operatorname{sin} \theta=$________.
Option 1: $0$
Option 2: $\frac{13}{12}$
Option 3: $\frac{12}{13}$
Option 4: $\frac{1}{5}$
Correct Answer: $\frac{12}{13}$
Solution : $\sec \theta+\tan \theta=5$---(1) We know, $\sec^2 \theta-\tan^2 \theta=1$ ⇒ $(\sec \theta+\tan \theta)(\sec \theta-\tan \theta)=5$ ⇒ $\sec \theta-\tan \theta=\frac{1}{5}$---(2) Solving equations 1 and 2, we get, $\sec \theta=\frac{13}{5}$, $\tan\theta=\frac{12}{5}$ So, $\cos\theta=\frac{1}{\sec\theta}=\frac{5}{13}$ $\tan\theta=\frac{12}{5}$ ⇒ $\frac{\sin\theta}{\cos\theta}=\frac{12}{5}$ ⇒ $\frac{\sin\theta}{\frac{5}{13}}=\frac{12}{5}$ $\therefore \sin \theta=\frac{12}{13}$ Hence, the correct answer is $\frac{12}{13}$.
Question : Select the most appropriate synonym of the bracketed word in the following sentence to fill in the blank.
I___________ (itemise) the work that will have to be done.
Option 1: impart
Option 2: enumerate
Option 3: conceal
Option 4: assess
Correct Answer: enumerate
Solution : The second option is the correct choice.
Itemise means to detail or list items, tasks, or things individually. Enumerate means to list things one by one, which makes it the correct synonym.
The meanings of the other options are as follows:
Question : Comprehension: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. Upgrading the higher education sector especially in terms of patents filed and cutting-edge research output is (1)______ in improving India’s global ranking. Our sustainable (2)______ development depends on human resources. A quality higher education base is essential to reap the full benefits of our demographic dividend. In higher education, the strategies of the 12th plan (3)______ on technical education, distance learning, quality research, infrastructure, faculty, and curriculum content. (4)______ efforts of the government departments and the private sector are needed to (5)______ the plan’s educational goals. Select the most appropriate option to fill in blank number 1.
Option 1: unrequired
Option 2: deserving
Option 3: fulfilling
Option 4: essential
Correct Answer: essential
Solution : The correct answer is the fourth option.
Explanation: The word essential, which means crucial or extremely important, fits best in the context, suggesting that upgrading the higher education sector is crucial or necessary for improving India's global ranking.
The meanings of the other options are
Directions: In the following question, select the related word from the given alternatives. Ant : Fly : Bee :: Hamster : Squirrel : ?
Option 1: Rodent
Option 2: Cat
Option 3: Mouse
Option 4: Spider
Correct Answer: Mouse
Solution : Given: Ant : Fly : Bee :: Hamster : Squirrel : ?
Like, Ant, Fly, and Bee are all insects. Similarly, Hamsters and Squirrels are rodents and Mouse is also a rodent.
Hence, the third option is correct.
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