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Staff Selection Commission Combined Higher Secondary Level Exam

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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.
The solar system is made up of the sun, planets, moons, asteroids, and comets that 1.______ around it. Its mysteries and wonders have captured the imagination of people from all walks of life, and it continues to be an area of active research and exploration. The sun is at the centre of the solar system and is the largest object in it. The eight planets in the solar system, 2._________ Earth, orbit around the sun in nearly circular paths. While the sun is at the centre of the solar system and dominates its gravitational pull, each planet has its own unique set of characteristics that makes it a fascinating object to study. Each planet in the solar system has unique characteristics and features. 3._________ planets, such as Mercury and Venus, are small and rocky, while others, like Jupiter and Saturn, are much larger and made up mostly of gas. The outer planets, Uranus and Neptune, are 4._______ as 'ice giants' because they contain more water, ammonia, and methane than the gas giants. In addition to the planets, the solar system also has numerous moons, asteroids, and comets. These objects provide important 5.______ about the formation and evolution of the solar system.
Question:
Select the most appropriate option to fill in the blank 2.

Option 1: excluding

Option 2: diluting

Option 3: dissolving

Option 4: including

Team Careers360 24th Jan, 2024

Correct Answer: including


Solution : The most appropriate option is the fourth option.

Explanation: Including means to contain as part of a whole. In this context, it implies that among the eight planets in the solar system, Earth is one of them. "The eight planets in the solar system, including

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Question : Wood spirit is 

Option 1: Methyl alcohol 

Option 2: Ethyl alcohol 

Option 3: Butyl alcohol 

Option 4: Propyl alcohol 

Team Careers360 24th Jan, 2024

Correct Answer: Methyl alcohol 


Solution : The correct option is - Methyl alcohol 

Other names for methanol include methyl alcohol, wood alcohol, and wood spirits and its chemical formula is CH3OH. It got the name "wood alcohol" because, in the past, it was mostly produced as a byproduct

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Question : If $\left(x-\frac{1}{x-2}\right)=7$, then the value of $(x-2)^3-\frac{1}{(x-2)^3}$ is:

Option 1: 130

Option 2: 115

Option 3: 140

Option 4: 125

Team Careers360 25th Jan, 2024

Correct Answer: 140


Solution : Given:
$\left(x-\frac{1}{x-2}\right)=7$
⇒ $\left(x-2-\frac{1}{x-2}\right)=5$
⇒ $\left(x-2-\frac{1}{x-2}\right)^3=5^3$
⇒ $(x-2)^3 - (\frac{1}{x-2})^3-3×(x-2)×(\frac{1}{x-2})\left(x-2-\frac{1}{x-2}\right)=125$
⇒ $(x-2)^3 - (\frac{1}{x-2})^3=125+(3×5)$
$\therefore (x-2)^3 - (\frac{1}{x-2})^3=140$
Hence, the correct answer is 140.

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Question : What is the popular name for mercury(I) chloride used as a laboratory reagent and as a depolarizer in dry batteries?

Option 1: Calomel

Option 2: Phosgene

Option 3: Galena

Option 4: Saltpetre

Team Careers360 25th Jan, 2024

Correct Answer: Calomel


Solution : The correct answer is Calomel.

The popular name for mercury(I) chloride is calomel. Calomel is a white or yellowish-white powder that has been used as a laboratory reagent in medicine and as a depolarizer in dry batteries.

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Question : How many solid spherical balls of radius 6 cm can be made by melting a solid hemisphere of radius 12 cm?

Option 1: 4

Option 2: 2

Option 3: 10

Option 4: 8

Team Careers360 25th Jan, 2024

Correct Answer: 4


Solution : The radius of a spherical ball, $r_1$ = 6 cm
The radius of the solid hemisphere, $r_2$ = 12 cm
Volume of a sphere = $\frac{4}{3}\pi{r_1^3}$
Volume of a hemisphere = $\frac{2}{3}\pi{r_2^3}$
Let n numbers of spherical balls be made.
So, $\text{n} \times\frac{4}{3}\pi\times6^3 = \frac{2}{3}\pi\times12^3$

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Question : The average of 6 consecutive even numbers is 35. What will be the sum of the smallest and largest even number among these 6 numbers?

Option 1: 68

Option 2: 72

Option 3: 70

Option 4: 66

Team Careers360 25th Jan, 2024

Correct Answer: 70


Solution : The average of 6 consecutive even numbers is 35.
Let the 6 consecutive even numbers be n, (n + 2), (n + 4), (n + 6), (n + 8), (n + 10).
The Sum of 6 consecutive numbers = n + (n + 2) +

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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.
All the housewives who went to the Kalpatharu Supermarket in Bengaluru had one great ambition: to be the lucky customer who did not have to pay for her (1)________. For this was what that notice just inside the entrance promised. It said, ‘Remember, once a week, one of our customers gets free goods. This may be your (2)________ day!’ For several weeks, Mrs. Batliwala hoped, like many of her friends, to be the lucky (3)________Unlike her friends, she never gave up hope. Her kitchen was full of things which she did not need. She dreamed of the day when the manager of the supermarket would approach her and say “Madam, this is your lucky day. (4)________ in your basket is free.”
On Saturday morning, Mrs. Batliwala went to the supermarket and bought only tea. She went to the cash desk when the manager of the supermarket came up to her and said, “You are our lucky customer, and everything in your basket is (5)________!”
Select the most appropriate option to fill in the blank number 1.

Option 1: cloths

Option 2: shopping

Option 3: sugar

Option 4: jewellery

Team Careers360 24th Jan, 2024

Correct Answer: shopping


Solution : The correct choice is the second option.

The use of the word "shopping" is right in the given context. The word shopping refers to the purchase of some goods.

Therefore, the correct sentence would be: "All the housewives who went to the Kalpatharu Supermarket in

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Question : Choose the sentence with no spelling error.

Option 1: We can never solvve our problems.

Option 2: We can never solve our problems.

Option 3: We can never solve our problams.

Option 4: We can nver solve our problems.

Team Careers360 25th Jan, 2024

Correct Answer: We can never solve our problems.


Solution : The second option is correct.

Explanation for the incorrect options:

  • Solvve is misspelled. The correct spelling is solve.
  • Problams is misspelled. The correct spelling is problems.
  • Nver is misspelled. The correct spelling is never.

The correct sentence

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Question : The use of more labour and capital inputs on the given land under cultivation is referred to as

Option 1: extensive cultivation

Option 2: intensive cultivation

Option 3: hybrid cultivation

Option 4: capitalist cultivation

Team Careers360 25th Jan, 2024

Correct Answer: intensive cultivation


Solution : The correct option is intensive cultivation.

Intensive farming requires significant financial and labour inputs about the size of the farmland. Producing as much food as possible in proportionate amounts is intensive agriculture's goal. Wheat, rice, soyabeans, and corn are intensively grown crops.

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Question : If $a^3+3 a^2+3 a=63$, then the value of $a^2+2 a$ is:

Option 1: 22

Option 2: 19

Option 3: 15

Option 4: 8

Team Careers360 25th Jan, 2024

Correct Answer: 15


Solution : $a^3+3 a^2+3 a=63$
We can factor the left side of the equation by recognizing it as a cube of a binomial,
$(a+1)^3=a^3+3a^2+3a+1$
Comparing this with the given equation, we have:
$(a+1)^3=63+1$
Taking the cube root of both sides, we get:
$a + 1 = \sqrt[3]{64}$

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