Staff Selection Commission Combined Higher Secondary Level Exam
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
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
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.
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 $\sqrt{3}$.
Question : The sum of all prime numbers between 58 and 68 is:
Option 1: 179
Option 2: 178
Option 3: 187
Option 4: 183
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.
Question : The lungs of a plant are:
Option 1: Leaves
Option 2: Stems
Option 3: Flowers
Option 4: Roots
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
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
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
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
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 ⇒
Question : Directions: In a certain code language, A + B means A is the sister of B; A – B means A is the husband of B; A × B means A is the son of B; A ÷ B means A is the mother of B. Based on the above, how is F related to J if F × G – H ÷ I + J?
Option 1: Brother
Option 2: Mother's brother
Option 3: Father
Option 4: Father's brother
Correct Answer: Brother
Solution : Given: A + B ⇒ A is the sister of B A – B ⇒ A is the husband of B A × B ⇒ A is the son of B A ÷ B ⇒ A is the mother of B
As per the given
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
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
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: $\frac{11}{36}$
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 $\frac{11}{36}$.
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2) and (3) that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
I shall write to you when I reach Agra.
(1) will write to you
(2) would write to you
(3) should write to you
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (4)
Solution : The correct choice is the fourth option, as there is no improvement in the sentence.
Auxiliary verbs are used to form the simple future tense. "Shall" is used in the first person and "will" is used for the second and third persons. Thus, the sentence
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