Staff Selection Commission Sub Inspector Exam
Question : Directions: Select the Venn diagram that represents the correct relationship between the following classes. Singers, Homo Sapiens, Cricketers
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Based on the general information, Homo Sapiens is the scientific name of humans. So, both singers and cricketers are homo sapiens. So, two circles representing singers and cricketers will lie inside the circle that represents homo sapiens. Also, some cricketers can be singers and some singers
Question : If each side of a square is decreased by 17%, then by what percentage does its area decrease?
Option 1: 25%
Option 2: 30.79%
Option 3: 31.11%
Option 4: 44.31%
Correct Answer: 31.11%
Solution : Let the side of the square be 100. After decrement of 17% = 83 Initial area = $(side)^2$ = $100^2$ = 10000 Area after decrement = $83^2$ = 6889 Difference in areas = 10000 – 6889 = 3111 Decrease in area (in percentage) = $\frac{\text{Decrease
Question : PA and PB are two tangents from a point P outside the circle with centre O. If A and B are points on the circle such that $\angle \mathrm{APB}=142^{\circ}$, then $\angle \mathrm{OAB}$ is equal to:
Option 1: 31°
Option 2: 58°
Option 3: 71°
Option 4: 64°
Correct Answer: 71°
Solution : Given: PA and PB are tangents $\angle OAP = 90^\circ $ $\angle OBP = 90^\circ $ As, OAPB is a quadrilateral $\angle OAP + \angle APB + \angle PBO + \angle BOA = 360^\circ $ ⇒ $90^\circ + 142^\circ + 90^\circ + \angle BOA =
Question : Which among the following Sultans of Delhi was appointed as Amir-i-Tuzuk (Master of Ceremonies) before becoming the Sultan?
Option 1: Muhammad bin Tughluq
Option 2: Alauddin Khalji
Option 3: Balban
Option 4: Iltutmish
Correct Answer: Alauddin Khalji
Solution : The correct answer is Alauddin Khalji.
Alauddin Khalji, the ambitious nephew and son-in-law of Jalaluddin, played a crucial role in his uncle's rise to power, earning the title of Amir-i-Tuzuk (Master of Ceremonies). Under Jalaluddin's reign, Alauddin achieved success in two expeditions.
Question : Directions: Three statements are given followed by three conclusions numbered I, II, and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All D is V. Some S is D. No W is S. Conclusions: I. Some W is not D. II. Some V is S. III. Some D is S.
Option 1: Only Conclusion III follows
Option 2: Conclusions I, II, and III follow
Option 3: Both Conclusions II and III follow
Option 4: Only Conclusion I follows
Correct Answer: Both Conclusions II and III follow
Solution : The possible Venn diagram, according to the given statements is as follows
Let's analyse the conclusions – Conclusion (I): Some W is not D – It is a possibility that the circle representing W is completely overlapped by the circle
Question : Directions: Select the option that is embedded in the given figure. (Rotation is NOT allowed)
Solution : Since there is a restriction on the rotation of the figure, we will check which of the option figures can exactly fit in the given question figure. By comparison of all the option figures, only the second option figure is embedded in the given question figure.
Question : Directions: Select the Venn diagram that best illustrates the relationship between the following classes. Asia, India, Pakistan
Solution : Based on the general information, both India and Pakistan are the countries in Asia. So, the circles that represent India and Pakistan will lie inside the circle that represents Asia. But India and Pakistan are not related to each other in any manner. So, their circles
Question : The value of $\sqrt{11+2 \sqrt{18}}$ is closest to:
Option 1: 4.8
Option 2: 4.4
Option 3: 3.8
Option 4: 4.1
Correct Answer: 4.4
Solution : Given: The expression is $\sqrt{11+2 \sqrt{18}}$ Use the algebraic identity, $(a+b)^2=a^2+b^2+2ab$ $\sqrt{11+2 \sqrt{18}}$ $=\sqrt{({\sqrt9})^2+({\sqrt 2})^2+2\times \sqrt{9}\times \sqrt2}$ $=\sqrt{({\sqrt 9}+{\sqrt 2})^2}$ $={\sqrt 9}+{\sqrt 2}$ $=3+1.414=4.414$ Hence, the correct answer is 4.4.
Question : Sudha Chandran is a known actress and an accomplished ___________ dancer.
Option 1: Kathakali
Option 2: Kuchipudi
Option 3: Bharatanatyam
Option 4: Sattriya
Correct Answer: Bharatanatyam
Solution : The correct option is Bharatanatyam.
Sudha Chandran is a known actress and an accomplished Bharatanatyam dancer. Bharatanatyam is known for its intricate footwork, expressive gestures, and captivating storytelling. Sudha Chandran, despite losing her leg in an accident, has continued to excel in this demanding
Question : Directions: Arrange the following words as per their order in the dictionary. 1. Management 2. Manufacture 3. Maintain 4. Manner
Option 1: 1, 2, 3, 4
Option 2: 3, 2, 4, 1
Option 3: 4, 3, 2, 1
Option 4: 3, 1, 4, 2
Correct Answer: 3, 1, 4, 2
Solution : Given: 1. Management 2. Manufacture 3. Maintain 4. Manner
Step 1: Compare the first letter of each word. Since all the words start with the same letter M, then move on to the next letter. Step 2: The second letter
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