Staff Selection Commission Combined Higher Secondary Level Exam
Question : Which hypothesis was proposed by Paul Ehrlich to suggest the importance of species richness in the maintenance of ecosystems?
Option 1: Portfolio hypothesis
Option 2: Redundancy hypothesis
Option 3: Predation hypothesis
Option 4: Rivet Popper hypothesis
Correct Answer: Rivet Popper hypothesis
Solution : The correct answer is the Rivet Popper hypothesis.
Paul Ehrlich put forth the Rivet Popper Hypothesis. According to the hypothesis, species richness is crucial to the ecosystem's ability to remain intact. The Rivet Hypothesis compares the increasingly critical impact that the extinction of
Question : Suresh N. Patel was appointed as chief of which organisation in August 2022?
Option 1: NITI Ayog
Option 2: SEBI
Option 3: Election Commission of India
Option 4: Central Vigilance Commission
Correct Answer: Central Vigilance Commission
Solution : The correct option is the Central Vigilance Commission.
Suresh N. Patel was appointed as chief of the Central Vigilance Commission. Previously, he was the Vigilance Commissioner. President Draupadi Murmu swore him in for his post.
Question : The average revenue for seven consecutive years of a company is Rs. 75 lakhs If the average of the first 4 years is Rs. 70 lakhs and that of the last 4 years is Rs. 82 lakhs, what will be the revenue for the 4th year?
Option 1: Rs. 85 lakhs
Option 2: Rs. 83 lakhs
Option 3: Rs. 81 lakhs
Option 4: Rs. 79 lakhs
Correct Answer: Rs. 83 lakhs
Solution : Given: Average revenue of 7 consecutive years = Rs. 75 lakhs Average revenue of first 4 years = Rs. 70 lakhs Average revenue of last 4 years = Rs. 82 lakhs Total revenue of 7 years = Average revenue × Number of years
Question : Directions: A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the paper is unfolded, the following figures will be obtained –
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. All the housewives who went to the Kalpatharu Supermarket in Bengaluru had one great ambition: to be the lucky customer who did not have to pay for her (1)________. For this was what that notice just inside the entrance promised. It said: ‘Remember, once a week, one of our customers gets free goods. This may be your (2)________ day!’ For several weeks, Mrs. Batliwala hoped, like many of her friends, to be the lucky (3)________. Unlike her friends, she never gave up hope. Her kitchen was full of things which she did not need. She dreamed of the day when the manager of the supermarket would approach her and say, “Madam, this is your lucky day. (4)________ in your basket is free.” On Saturday morning, Mrs. Batliwala went to the supermarket and bought only tea. She went to the cash desk when the manager of the supermarket came up to her and said,. “You are our lucky customer, and everything in your basket is (5)________!” Select the most appropriate option to fill in the blank number 5.
Option 1: yours
Option 2: expensive
Option 3: cheap
Option 4: free
Correct Answer: free
Solution : The correct choice is the fourth option.
Explanation: In this context, the manager is referring to the items in Mrs. Batliwala's basket and telling her that those items would not cost her anything.
Therefore, the correct sentence would be: "You are our lucky customer,
Question : Directions: In this question, 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. D can be represented by 01, 10, etc, and R can be represented by 34, 22, etc. Similarly, you have to identify the set for the word DREAM.
Option 1: 98, 40, 85, 19, 20
Option 2: 01, 04, 42, 76, 98
Option 3: 68, 34, 24, 00, 88
Option 4: 11, 04, 24, 41, 88
Correct Answer: 68, 34, 24, 00, 88
Solution : Given: DREAM
Number representations of each letter – D→01, 10, 68 R→04, 13, 22, 31, 34, 40 E→24, 32, 41, 56, 65 A→00, 58, 67, 76, 85 M→03, 79, 88, 97
First option: 98, 40, 85, 19, 20; D, E, A,
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
Electronic mail or E-mail (1) / are a method of exchanging (2) / digital messages. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The second option is the correct choice.
The subject, which is Electronic mail or E-mail is singular. Hence, a singular linking verb "is" is the right usage.
Therefore, the correct sentence is: Electronic mail or E-mail is a method of exchanging digital messages.
Question : Kajari festival is celebrated in which of the following states?
Option 1: Punjab
Option 2: Jharkhand
Option 3: Chhattisgarh
Option 4: Karnataka
Correct Answer: Chhattisgarh
Solution : The correct option is Chhattisgarh.
The Kajari festival is primarily celebrated in the Indian states of Chhattisgarh, Madhya Pradesh, and some other parts of North India. It is a festival that marks the beginning of the sowing season and is dedicated to the worship of
Question : The sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.
A) Benefits of reading have been underlined since ages together. B) Once they understand the sensibleness behind reading, they would pass it on to others as well. C) It brings knowledge and wisdom both to the readers. D) By virtue of a practice at home, this can be suggested to the young ones.
Option 1: ABCD
Option 2: CDBA
Option 3: CDAB
Option 4: ACDB
Correct Answer: ACDB
It starts by highlighting the long-standing recognition of reading's advantages (A), followed by how reading enriches knowledge and wisdom (C). It suggests fostering a reading habit at home to encourage younger generations (
Question : If $\triangle PQR$ is right angled at Q, then what is the value of $\cos (P+R)$?
Option 1: 0.5
Option 2: 1
Option 3: 0.2
Option 4: 0
Correct Answer: 0
Solution : $\triangle$PQR is right angled at Q, then $\angle$Q = 90° $\cos(P + R) = \cos(180° − Q)$ (Since the sum of the angle in a triangle is 180°) ⇒ $\cos(P + R) = \cos(180° − 90°)$ ⇒ $\cos(P + R) = \cos 90°$ Since, $\cos
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