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Staff Selection Commission Combined Higher Secondary Level Exam

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Question : In a circle with a centre at O(0,0) and a radius of 5 cm, AB is a chord of length 8 cm. If OM is perpendicular to AB, then the length of OM is:

Option 1: 2.5 cm

Option 2: 3 cm

Option 3: 4 cm

Option 4: 1 cm

Team Careers360 21st Jan, 2024

Correct Answer: 3 cm


Solution :
Given , AB = 8 cm
We know that the perpendicular from the centre of a circle to a chord bisects the chord.
AM = MB = $\frac{1}{2}×8=4$ cm
OA = 5 cm
From ∆ AOM,
OA2 = OM2 + AM2

12 Views

Question : Which is greater $\sqrt[3]{2}$ or $\sqrt{3}$?

Option 1: Cannot be compared.

Option 2: $\sqrt[3]{2}$

Option 3: $\sqrt{3}$

Option 4: Both are equal.

Team Careers360 25th Jan, 2024

Correct Answer: $\sqrt{3}$


Solution : Taking LCM of the given indices i.e., LCM of 2 and 3 is 6.
$\Rightarrow \sqrt[3]{2}=2^\frac{1}{3}=2^\frac{2}{6}=\sqrt[6]{2^2}=\sqrt[6]{4}$
$\Rightarrow \sqrt{3}=3^\frac{1}{2}=3^\frac{3}{6}=\sqrt[6]{3^3}=\sqrt[6]{27}$
Thus, $\sqrt{3}$ is greater.
Hence, the correct answer is $\sqrt{3}$.

18 Views

Question : The sum of all prime numbers between 58 and 68 is:

Option 1: 179

Option 2: 178

Option 3: 187

Option 4: 183

Team Careers360 19th Jan, 2024

Correct Answer: 187


Solution : List of all the prime numbers between 58 and 68
= 59, 61 and 67
Now, (59 + 61 + 67) = 187
Hence, the correct answer is 187.

23 Views

Question : The lungs of a plant are:

Option 1: Leaves

Option 2: Stems

Option 3: Flowers

Option 4: Roots

Team Careers360 18th Jan, 2024

Correct Answer: Leaves


Solution : The correct answer is Leaves.

Leaves are sometimes referred to as the "lungs of plants" because they serve an important role in gas exchange, which is analogous to the function of animal lungs. During photosynthesis, plants absorb carbon dioxide (CO2) from the atmosphere

22 Views

Question : A supply function expresses the relationship between

Option 1: price and output

Option 2: price and seller cost

Option 3: price and demand

Option 4: price and consumption

Team Careers360 16th Jan, 2024

Correct Answer: price and output


Solution : The correct option is price and output.

A supply function is an economic term that, while leaving other variables constant, expresses the relationship between the cost of a good or service. It is common for the supply function to slope positively, indicating

79 Views

Question : A number is first decreased by 20%. The decreased number is then increased by 20%. The resulting number is less than the original number by 20. Then the original number is:

Option 1: 200

Option 2: 400

Option 3: 500

Option 4: 600

Team Careers360 23rd Jan, 2024

Correct Answer: 500


Solution : Let $x$ be the initial value.
The number becomes 0.8$x$ after being reduced by 20%.
The number becomes 1.2 × (0.8$x$) = 0.96$x$ after increasing by 20%. This is 20 less than the initial number.
According to the question,
0.96$x$  =  $x$ – 20

19 Views

Question : Article 370 of the Indian Constitution upholds

Option 1: land reform legislation in India

Option 2: diplomatic privileges and immunities

Option 3: special status of Jammu and Kashmir State

Option 4: duties and rights of Lokpal

Team Careers360 23rd Jan, 2024

Correct Answer: special status of Jammu and Kashmir State


Solution : The correct answer is the special status of Jammu and Kashmir State.

It allowed Jammu and Kashmir to have its constitution, flag, and legislative authority. The Indian constitution's "Temporary, Transitional and Special Provisions" Part XXI contains Article 370. It

14 Views

Question : If $\sin\phi=\frac{5}{6}$, the value of $\cot\phi \cdot \sin\phi \cdot \cos\phi$ is:

Option 1: $\frac{6}{5}$

Option 2: $\frac{25}{36}$

Option 3: $\frac{5}{6}$

Option 4: $\frac{11}{36}$

Team Careers360 18th Jan, 2024

Correct Answer: $\frac{11}{36}$


Solution : Given: $\sin\phi=\frac{5}{6}$.
Now, $\cot\phi \cdot \sin\phi \cdot \cos\phi$
= $\frac{\cos\phi}{\sin\phi}×\sin\phi×\cos\phi$
= $\cos^2\phi$
= $1–\sin^2\phi$
= $1–(\frac{5}{6})^2$
= $1–\frac{25}{36}$
= $\frac{11}{36}$
Hence, the correct answer is $\frac{11}{36}$.

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