Staff Selection Commission Combined Higher Secondary Level Exam
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 333, 321, 328, 328, 323, 335, ?
Option 1: 316
Option 2: 322
Option 3: 318
Option 4: 325
Correct Answer: 318
Solution : Given: 333, 321, 328, 328, 323, 335, ?
Subtract 5 and add 7 alternatively to each term to get the next alternate term in the series – 333 – 5 = 328; 321 + 7 = 328; 328 – 5 = 323; 328 + 7 = 335; 323 – 5 = 318
Therefore, 318 is the missing number of the series. Hence, the third option is correct.
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on line MN). So, the left side of the reflected image will appear as the right side, and the right side will appear as the left side. However, the top and bottom of the reflected image will remain the same. Thus, the correct mirror image of the given figure will be –
Hence, the fourth option is correct.
Question : Directions: If + means –, × means +, – means ÷, and ÷ means ×, then what will come in place of ? in the given expression? 72 × 19 ÷ 13 + 16 – ? ÷ 15 × 7 = 266
Option 1: 32
Option 2: 16
Option 3: 4
Option 4: 2
Correct Answer: 4
Solution : Given: + means –, × means +, – means ÷, and ÷ means × 72 × 19 ÷ 13 + 16 – ? ÷ 15 × 7 = 266
Replace the symbols according to the instructions – 72 + 19 × 13 – 16 ÷ ? × 15 + 7 = 266 72 + 247 – 16 ÷ ? × 15 + 7 = 266 319 + 7 – 16 ÷ ? × 15 = 266 326 – 266 = – 16 ÷ ? × 15 ? = (16 × 15) ÷ 60 ? = 4
So, 4 is the correct answer. Hence, the third option is correct.
Question : Comprehension: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. Ancient coins are a fascinating (1)________ into the past, providing insight into the culture, economy, and politics of ancient civilizations. Coins were first invented in the 7th century BCE, and the use of coins spread rapidly throughout the ancient world, and many civilizations minted their own unique coins with (2)________ designs and symbols. One of the most significant aspects of ancient coins is the information they provide. Coins often bear the images and inscriptions of rulers, which can provide clues about their (3)________ and the values they held. They can also reveal information about trade and commerce, as well as the materials and technology used in coin minting. The craftsmanship and attention to detail in these coins are a (4)_________ to the skill and creativity of ancient artists. While many ancient coins are now rare and valuable collector's items, they were once a common form of currency used in everyday transactions. Their ubiquity and durability have allowed them to survive for centuries, providing a window into the past for future generations to explore and (5)________. Select the most appropriate option to fill in the blank 3.
Option 1: nature
Option 2: reign
Option 3: performance
Option 4: inactivity
Correct Answer: reign
Solution : The correct choice is the second option.
Reign refers to the period during which a ruler rules. In this context, the inscriptions and images of rulers on ancient coins provide clues about their reigns, shedding light on their leadership and the values they upheld.
The meanings of the other options are as follows:
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select 'No Error'.
My brother's (1) / ability of acting (2) / was recognised at a very young age. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
The phrase "of acting' should be replaced with "to act" to convey the intended meaning that the acting ability of the speaker's brother was recognised at a very young age.
The infinitive form "to act" is used to indicate the purpose of the action.
Therefore, the correct sentence is: My brother's ability to act was recognised at a very young age.
Question : Directions: Identify the figure given in the options that when put in place of the question mark (?) will logically complete the series.
Solution : In the given figure, follow the directions to find the next term –
Hence, the first option is correct.
Question : If the sum of all interior angles of a regular polygon is 14 right angles, then its number of sides is:
Option 1: 8
Option 2: 9
Option 3: 7
Option 4: 6
Correct Answer: 9
Solution : Sum of all interior angles = $14×90^{\circ}$ = $1260^{\circ}$ Let the number of sides of the polygon be $n$. ⇒ $1260^{\circ}$ = $(n-2)×180^{\circ}$ ⇒ $(n-2)$ = $\frac{1260}{180}$ ⇒ $(n-2)$ = $7$ ⇒ $n$ = $2+7$ = $9$ Hence, the correct answer is 9.
Question : Who among the following won the bronze medal at the World U20 Wrestling Championship 2022, which was held in Sofia, Bulgaria?
Option 1: Atul Malhotra
Option 2: Vikas Khedkar
Option 3: Rohit Dahiya
Option 4: Bajrang Punia
Correct Answer: Rohit Dahiya
Solution : The correct answer is Rohit Dahiya.
Rohit Dahiya won bronze medals on the final day of the World Championship 2022 in Sofia, Bulgaria. He defeated his opponent, Ukraine's Ruslan Abdiiev, in the 82 kg. India ended the World U20 Wrestling Championships 2022 with sixteen medals, which comprised one gold, four silvers, and eleven bronze medals.
Question : Indian Navy Sailing Championship 2022, one of the events being conducted by the Indian Navy to commemorate Azadi ka Amrit Mahotsav and khelo India, was held in:
Option 1: Andhra Pradesh
Option 2: West Bengal
Option 3: Tamil Nadu
Option 4: Kerala
Correct Answer: Kerala
Solution : The correct option is Kerala.
The Indian Navy Sailing Championship 2022, celebrating both Azadi ka Amrit Mahotsav, and Khelo India, was held at the picturesque Indian Naval Academy (INA) in Ezhimala, Kerala, from October 18th to 21st, 2022. This premier sailing event saw nearly 100 yachtsmen and women from all three Indian Naval Commands compete in three formats (Fleet Racing, Match Racing, and Team Racing) across five different boat classes.
Question : D and E are points on sides AB and AC of $\Delta ABC$. DE is parallel to BC. If AD : DB = 2 : 3. What is the ratio of the area of $\Delta ADE$ and the area of quadrilateral BDEC?
Option 1: 4 : 21
Option 2: 4 : 25
Option 3: 4 : 29
Option 4: 4 : 9
Correct Answer: 4 : 21
Solution : AD : DB = 2 : 3 Let AD =$2x$ DB = $3x$ Now, the ratio of the area of the similar triangle is equal to the square of the ratio of their corresponding sides. Hence, in similar $\triangle ABC$ and $\triangle ADE$ $\frac{\text{Area of}\triangle ABC}{\text{Area of}\triangle ADE}=\frac{AB^2}{AD^2}$ ⇒ $\frac{\text{Area of}\triangle ABC}{\text{Area of}\triangle ADE}=\frac{(5x)^2}{(2x)^2} = \frac{25}{4}$ Let the area of$\triangle ABC$ be 25k and the area of $\triangle ADE$ be 4k $\therefore$ Area of quadrilateral BDEC = Area of $\triangle ABC-$Area of $\triangle ADE$ = 25k – 4k = 21k The ratio of the area of $\Delta ADE$ and the area of quadrilateral BDEC = 4 : 21. Hence, the correct answer is 4 : 21.
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