Staff Selection Commission Sub Inspector Exam
Question : How many medals in total did India win at the Summer Olympic Games in 2012?
Option 1: 2
Option 2: 6
Option 3: 3
Option 4: 4
Correct Answer: 6
Solution : The correct answer is 6.
India's 2012 Summer Olympics marked a historic achievement, doubling its previous record with a total of six medals, including two silver and four bronze. Notably, the nation's first female athletes to secure Olympic medals in the same Games were
Question : The SI (International System of Units) unit of length is______.
Option 1: metre
Option 2: centimetre
Option 3: millimetre
Option 4: kilometre
Correct Answer: metre
Solution : The correct answer is metre.
The metre is the unit of length in the SI (International System of Units). The most widely used measurement system is the International System of Units (SI), which is the current equivalent of the metric system based on the
Question : The curved surface area of a cone whose base radius is 7 cm and slant height is 10 cm is:
Option 1: 280 cm2
Option 2: 250 cm2
Option 3: 300 cm2
Option 4: 220 cm2
Correct Answer: 220 cm2
Solution : Give: Radius = 7 cm Slant height = 10 cm The curved surface area of a cone = $\pi rl$ = $\frac{22}{7}\times7\times10$ = 220 cm2 Hence, the correct answer is 220 cm2.
Question : In $\Delta \mathrm{ABC}$, a line parallel to side $\mathrm{BC}$ cuts the sides $\mathrm{AB}$ and $\mathrm{AC}$ at points $\mathrm{D}$ and $\mathrm{E}$ respectively and also point $\mathrm{D}$ divides $\mathrm{AB}$ in the ratio of $\mathrm{1 : 4}$. If the area of $\Delta \mathrm{ABC}$ is $200\;\mathrm{cm^2}$, then what is the area (in $\mathrm{cm^2}$) of quadrilateral $\mathrm{DECB}$?
Option 1: 192
Option 2: 50
Option 3: 120
Option 4: 96
Correct Answer: 192
Solution : Given: $\mathrm{AD:DB=1:4}$ and the area of $\Delta \mathrm{ABC}$ is $200\;\mathrm{cm^2}$. In $\Delta \mathrm{ABC}$, $\mathrm{DE}\parallel\mathrm{BC}$ So, $\Delta \mathrm{ADE}\sim\Delta \mathrm{ABC}$, The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides. ⇒ $\frac{\text{Area of $\Delta \mathrm{ADE}$}}{{\text{Area of
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 own 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: Select the most appropriate ANTONYM of the given word. Controlled
Option 1: Profuse
Option 2: Promise
Option 3: Practicality
Option 4: Agitated
Correct Answer: Agitated
Solution : The correct choice is the fourth option.
The word controlled implies restraint, regulation, or a state of being managed or directed. On the other hand, the antonym agitated suggests a state of excitement, nervousness, or unrest.
The meanings of the other options are as follows:
Question : The length of the shadow of a vertical pole on the ground is 36 m. If the angle of elevation of the sun at that time is $\theta$. Such that $\sec \theta=\frac{13}{12}$, then what is the height (in m) of the pole?
Option 1: 12
Option 2: 15
Option 3: 18
Option 4: 9
Correct Answer: 15
Solution : The angle of elevation of the sun and the height of the pole form a right triangle with the length of the shadow. Given that $\sec \theta = \frac{13}{12}$, $⇒\cos \theta = \frac{1}{\sec \theta} = \frac{12}{13}$ Since $\cos^2 \theta + \sin^2 \theta = 1$. $⇒\sin
Question : Directions: If – means +, × means ÷, ÷ means −, and + means ×, what will come in place of the question mark (?)? 76 × 4 + 13 ÷ 8 – 3 = ?
Option 1: 236
Option 2: 212
Option 3: 108
Option 4: 242
Correct Answer: 242
Solution : Given: 76 × 4 + 13 ÷ 8 – 3 = ?
On interchanging the mathematical sign, we get – = 76 ÷ 4 × 13 − 8 + 3 = 19 × 13 − 8 + 3 = 247 − 8 + 3 =
Question : Directions: Read the sentence to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sentence. The number of that part is the answer. If there is no error, the answer is (4).
Rajni is planning to settle (1) / in Mumbai as soon as (2) / she retires in August the next year. (3) / No Error (4)
Option 1: 1
Option 2: 2
Correct Answer: 3
Solution : The error lies in the third part of the sentence.
The error is the incorrect usage of the article "the". The sentence discusses a future event, making "next year" an appropriate expression. We can use 'the next year' to denote the upcoming year in a
Question : Select the most appropriate SYNONYM of the given word. FASCINATING
Option 1: tiring
Option 2: boring
Option 3: appealing
Option 4: stupid
Correct Answer: appealing
Solution : The correct choice is the third option.
Fascinating is an adjective that describes something extremely interesting, captivating, or enchanting. When searching for a synonym, it's important to choose a word that maintains the positive connotation associated with being fascinating. Appealing fits this criterion, as it
Question : Directions: A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in the two matrices, given below. The columns and rows of Matrix (I) are numbered from 0 to 4 and that of Matrix (II) are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g. K can be represented by 03, 34, etc, and E can be represented by 59, 97, etc. Similarly, you have to identify the set for the word SHOP.
Option 1: 01, 21, 58, 96
Option 2: 44, 02, 89, 76
Option 3: 14, 33, 77, 56
Option 4: 33, 40, 65, 88
Correct Answer: 44, 02, 89, 76
Solution : Given: SHOP
Number representations of each letter – S→01, 13, 20, 32, 44 H→02, 14, 21, 33, 40 O→58, 65, 77, 89, 96 P→57, 69, 76, 88, 95
First option: 01, 21, 58, 96; P cannot be represented as 96. Second option:
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