Staff Selection Commission Sub Inspector Exam
Question : Comprehension: Read the given passage and answer the questions that follow. Ghana was the first true African state. The reason why we are saying this is that most African states lived in tribal villages but Ghana was the centre of the gold trade. This gold trade opened new possibilities for the Ghanaians. The gold trade roots back to the 4th century, when African Soninke tribes were under the rule of the Maga, a Berber clan originating from Morocco. This clan has mastered trans-Saharan camel travel. They were known for trading salt for gold from the Soninke. When the Arabs invaded North Africa, there was an upsurge in the trade in gold. Ghana became rich and soon after, the Soninke ousted the Maga and built their nation under Kaya Magan Cisse, who became the Soninke king around 790. Ghana’s ancient capital, Koumbi Salah, was the city where Africans and Berbers met and traded. Arab traders in the 9th century described Ghana as ‘the land of gold.’ The gold came from Asante and Senegal to the south and west. The trade routes led north and east to Morocco, Libya Aksum and so on to Europe and Asia. Ghana had reached its peak in the 10th century. This was the country which controlled both the gold and salt trades. Other trading goods included woollen clothes, luxury items, leather goods and slaves. Traders transported goods hundreds of kilometres across the Sahara desert with camel caravans. Question: _________ and _________ were the foundation of Ghana’s trade in ancient times.
Option 1: Woollen clothes; luxurious items
Option 2: Leather goods; slaves
Option 3: Gold; salt
Option 4: Camel; caravans
Correct Answer: Gold; salt
Solution : The correct answer is the third option.
Refer to these lines: "The gold trade roots back to the 4th century when African Soninke tribes were under the rule of the Maga, a Berber clan originating from Morocco. They were known for trading salt for
Question : To do a certain work, B would take time thrice as long as A and C together and C twice as long as A and B together. The three men together complete the work in 10 days. The time taken by A to complete the work separately is:
Option 1: 22 days
Option 2: 24 days
Option 3: 30 days
Option 4: 20 days
Correct Answer: 24 days
Solution : If B does the work in 3$x$ days, (A + C) will do the same work in $x$ days. If C does that work in 2$y$ days. (A + B) will do it in $y$ days. According to the question, $\frac{1}{x}+\frac{1}{3x}=\frac{1}{10}$ ⇒ $\frac{4}{3x}=\frac{1}{10}$ ⇒
Question : The lead chromate which is toxic and carcinogenic, is used for the adulteration of ____________powder.
Option 1: Chili
Option 2: Garlic
Option 3: Turmeric
Option 4: Ginger
Correct Answer: Turmeric
Solution : The correct option is Turmeric.
The lead chromate, known for its toxicity and carcinogenic properties, is used to adulterate turmeric powder. This deceptive practice enhances the yellow colour, masking impurities or inferior quality. Consumption of lead-contaminated turmeric poses serious health risks, including neurological damage, digestive
Question : The most abundant element is
Option 1: Calcium
Option 2: Silicon
Option 3: Oxygen
Option 4: Nitrogen
Correct Answer: Oxygen
Solution : The correct option is Oxygen.
After hydrogen and helium, oxygen is the third most abundant element in the universe (by mass). It also makes up the most abundant element (by mass) in the Earth's crust, accounting for nearly half of the crust's mass. Around 89%
Question : The ratio of three sides of a triangle is $5: 5: 8$. If the area of triangle is $12\;\mathrm{cm^2}$, then what is the length (in$\;\mathrm{cm}$) of the equal sides?
Option 1: 5
Option 2: 8
Option 3: 6
Option 4: 2.5
Correct Answer: 5
Solution : Given that the ratio of the sides of the triangle is $5:5:8$. This is an isosceles triangle. Let the sides of the triangle be $5x$, $5x$, and $8x$. Height $(h)= \sqrt{(5x)^2 - (4x)^2} = 3x$ The area of an isosceles triangle $=\frac{1}{2} \times \text{b} \times
Question : Directions: In the following question, select the missing number from the given responses.
Option 1: 53
Option 2: 68
Option 3: 71
Option 4: 76
Correct Answer: 68
Solution : Here, multiply the left and right numbers and add the resultant to the sum of the top and bottom numbers to get the middle term.
In figure one: (6 × 7) + (8 + 4) = 42 + 12 = 54 In figure two: (8
Question : The least number which is exactly divisible by 5, 6, 8, 10 and 12 is:
Option 1: 180
Option 2: 240
Option 3: 120
Option 4: 150
Correct Answer: 120
Solution : The least number which is exactly divisible by 5, 6, 8, 10, and 12 is their least common multiple (LCM). Factors of 5 = 5 × 1 Factors of 6 = 2 × 3 Factors of 8 = 2 × 2 × 2 Factors of
Question : Study the given bar graph carefully to answer the question that follows. Marks obtained by four students in Mid-I and Mid-II.
Marks obtained by Hemant in Mid-I are what percentage of the total marks obtained by all the students in Mid-I?
Option 1: 30%
Option 2: 15%
Option 3: 20%
Option 4: 25%
Correct Answer: 25%
Solution : According to the question Total Marks obtained by all students in mid1= 33 + 30 + 36 + 21 = 120 Now, Required Percentage = $\frac{\text{Marks obtained by Hemant in mid 1}}{\text{Sum of the marks obtained by all}}×100$ = $\frac{30}{120}×100$ = $\frac{1}{4} × 100$ =
Question : Select the most appropriate synonym of the given word. TRANQUIL
Option 1: nervous
Option 2: agitated
Option 3: calm
Option 4: wild
Correct Answer: calm
Solution : The third option is the correct answer.
Tranquil describes a state of peace, quietness, and calmness. It suggests a serene and undisturbed atmosphere. Similarly, calm refers to a state of tranquillity and the absence of disturbance.
The meanings of the other options are as follows:
Question : A vehicle is going at one-fourth of its usual speed and it takes an extra 45 minutes to reach its destination. It's usual time to cover the same distance is:
Option 1: 15 minutes
Option 2: 10 minutes
Option 3: 30 minutes
Option 4: 20 minutes
Correct Answer: 15 minutes
Solution : Given, A vehicle is going at one-fourth of its usual speed and it takes an extra 45 minutes to reach its destination. We know that, time × Speed = Distance Let the usual speed of the train and distance be 4S km/h and D
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