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Staff Selection Commission Combined Higher Secondary Level Exam

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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: $(–6,–7)$

Team Careers360 23rd Jan, 2024

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

18 Views

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

Team Careers360 9th Jan, 2024

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.

18 Views

Question : Who introduced 'doctrine of lapse' ?

Option 1: Lord Wellesley

Option 2: Lord Curzon

Option 3: Lord Dalhousie

Option 4: Lord Lytton

Team Careers360 22nd Jan, 2024

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

18 Views

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

Team Careers360 10th Jan, 2024

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

24 Views

Question : How many islands are there in Lakshadweep?

Option 1: 17

Option 2: 27

Option 3: 36

Option 4: 47

Team Careers360 14th Jan, 2024

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

10 Views

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: $\frac{1}{5}$

Team Careers360 22nd Jan, 2024

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 $\frac{12}{13}$.

54 Views

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

Team Careers360 10th Jan, 2024

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:

  • Impart: This means to
8 Views

Question :

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

Team Careers360 17th Jan, 2024

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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