Staff Selection Commission Combined Higher Secondary Level Exam
Question : Directions: Out of the given letter clusters, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is different from the rest.
Option 1: EIO
Option 2: IOU
Option 3: EID
Option 4: AEI
Correct Answer: EID
Solution : Let's check the options –
First option: EIO→E, I, O; all are vowels Second option: IOU→I, O; U all are vowels Third option: EID→E, I, D; here D is not a vowel Fourth option: AEI→A, E, I; all are vowels
So, the third option is
Question :
Which of the following amphibians lacks tongue?
Option 1:
Sphenodon
Option 2:
Salamander
Option 3: Ichthyophis
Option 4: Necturus
Correct Answer: Ichthyophis
Solution : The correct option is - Ichthyophis
Tongue is absent in Ichthyophis. The limbless amphibian is frequently referred to as the Asian caecilians. The western Indo-Australian Archipelago, the Philippines, and Southeast Asia are all places where you ichthyophis can be found.
Question : $\mathrm{O}$ is the centre of a circle and $\mathrm{A}$ is a point on a major arc $\mathrm{BC}$ of the circle. $\angle \mathrm{BOC}$ and $\angle \mathrm{BAC}$ are the angles made by the minor arc $\mathrm{BC}$ on the centre and circumference, respectively. If $\angle \mathrm{ABO}=40^{\circ}$ and $\angle \mathrm{ACO}=30^{\circ}$, then find $\angle \mathrm{BOC}$.
Option 1: $130^{\circ}$
Option 2: $140^{\circ}$
Option 3: $120^{\circ}$
Option 4: $150^{\circ}$
Correct Answer: $140^{\circ}$
Solution :
Given: That $O$ is the centre of a circle and $A$ is a point on a major arc $BC$ of the circle. $\angle BOC$ and $\angle BAC$ are the angles made by the minor arc $BC$ on the centre and circumference, respectively. Also $\angle ABO=40^{\circ}$
Question : In triangle ABC, $\angle$ABC = 15°. D is a point on BC such that AD = BD. What is the measure of $\angle$ADC (in degrees)?
Option 1: 15
Option 2: 30
Option 3: 45
Option 4: 60
Correct Answer: 30
Solution : Given: In triangle ABC, $\angle$ABC = 15°. D is a point on BC such that AD = BD. Given that AD = BD. Then, $\angle$ABD = $\angle$BAD = 15° Now, in $\triangle$ABD ⇒ $\angle$ABD + $\angle$BAD + $\angle$ADB = 180° ⇒ $\angle$ADB = 180° –
Question : The average of 100 observations was calculated as 35. It was found later, that one of the observations was misread as 83 instead of 53. The correct average is:
Option 1: 32.7
Option 2: 34.7
Option 3: 35.7
Option 4: 36.7
Correct Answer: 34.7
Solution : Given: The average of the 100 observations = 35 So, the sum of 100 observations = 100 × 35 = 3500 The correct value is 53 and the incorrect value is 83. Difference = 83 – 53 = 30 So, the correct average = $\frac{3500–30}{100}$
Question : Directions: Words given on the left side of (::) are related to each other by some Logic/Rule/Relation. Select the missing word/word pair on the right side of (::) from the given alternatives based on the same Logic/Rule/Relation. Ottawa : Canada :: ?
Option 1: Nairobi : Kenya
Option 2: Russia : Moscow
Option 3: Greece : Athens
Option 4: Spain : Madrid
Correct Answer: Nairobi : Kenya
Solution : Given: Ottawa : Canada :: ? (Ottawa is the capital city of Canada.)
Let's check the given options – First option: Nairobi : Kenya; Nairobi is the capital city of Kenya. Second option: Russia : Moscow; Moscow is the capital city of Russia,
Question : What is the Earth's escape velocity?
Option 1: 2.8 km/s
Option 2: 5.6 km/s
Option 3: 11.2 km/s
Option 4: 14 km/s
Correct Answer: 11.2 km/s
Solution : The correct option is 11.2 km/s.
The term "escape velocity" refers to the velocity at which a moving object, such as a rocket, must be travelling to leave the gravitational field of a celestial body, such as the Earth, and travel into space.
Question : The Pie chart shows the percentage distributions of the total number of laptops (both Dell and HP) sold by six stores in March. Refer to the pie chart and table carefully and answer the given questions Total number = 11200
What is the ratio of the number of Dell laptops sold by A to that of the HP laptops sold by stores C and D together?
Option 1: 49 : 72
Option 2: 35 : 76
Option 3: 49 : 76
Option 4: 43 : 76
Correct Answer: 35 : 76
Solution : Total number of Laptops = 11200 A store sold 18% laptops = $11200×\frac{18}{100}=2016$ In store A, Dell : HP = 5 : 4 Dell laptops sold from A = $\frac{5}{5+4}×2016=1120$ C store sold 20% laptops = $11200×\frac{20}{100}=2240$ In store C, Dell : HP
Question : Directions: In the following question, select the missing number from the given series. 10, 10, 20, 60, 240, ?
Option 1: 1150
Option 2: 1400
Option 3: 1200
Option 4: 1440
Correct Answer: 1200
Solution : Given: 10, 10, 20, 60, 240, ?
Multiply the previous term by consecutive natural numbers, to obtain the next term in the series – 10 × 1 = 10; 10 × 2 = 20; 20 × 3 = 60; 60 × 4 = 240; 240
Question : Which of the following Articles of the Indian Constitution prohibits forced labour and prevents exploitation?
Option 1: Article 20
Option 2: Article 19
Option 3: Article 25
Option 4: Article 23
Correct Answer: Article 23
Solution : The correct answer is Article 23.
Article 23 of the Indian Constitution prohibits forced labour and trafficking. It states that no person shall be subjected to forced labour, and the state is mandated to prohibit human trafficking and forced labour while allowing compulsory
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