Staff Selection Commission Sub Inspector Exam
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.
It was a cool and windy day. Shiela, Zora, Lamba and I were (1)_______ our way to the Park to play on the slides. On our way (2)_______, Shiela (3)_______ something stuck to her shoe. "Must be a (4)_______ of chewing gum or something," she muttered as she (5)_______ down to remove the object. What she removed from her shoe was a dirty note of five hundred rupees!
Question:
Select the most appropriate option to fill in the blank 1.
Option 1: on
Option 2: to
Option 3: in
Option 4: by
Correct Answer: on
Solution : The correct choice is the first option.
Explanation:
The phrase on our way is a common collocation and is grammatically correct. When describing movement or progress, we often use the preposition on, followed by the journey or path. "On our way" is a common
Question : Directions: The two given expressions on either side of the ‘=’ sign will have the same value if two numbers on either side or the same side are interchanged. Find from the given option the correct numbers to be interchanged. 4 + 6 × 2 – 27 ÷ 3 = 8 × 2 – 4 + 9 ÷ 3
Option 1: 6, 8
Option 2: 6, 2
Option 3: 4, 3
Option 4: 2, 8
Correct Answer: 6, 8
Solution : Given: 4 + 6 × 2 – 27 ÷ 3 = 8 × 2 – 4 + 9 ÷ 3
Interchange the numbers according to the given options to make both sides of the equation equal. Let's check each option – First option: 6,
Question : Directions: Arrange the given words in the sequence in which they occur in the dictionary. 1. Prayer 2. Plane 3. Prey 4. Predate 5. Picture
Option 1: 51234
Option 2: 51243
Option 3: 52143
Option 4: 52134
Correct Answer: 52143
Solution : Given: 1. Prayer 2. Plane 3. Prey 4. Predate 5. Picture
Step 1: Compare the first letter of each word. Since all the words start with the same letter P, move to the next letter. Step 2: The second letter of each word is
Question : Directions: In the following questions select the related words/letters/numbers/ figure from the given alternatives.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : According to the given figures – 1. The left part of the image is rotated by 90° in a clockwise direction. 2. The right part of the image is rotated by 90° in anticlockwise direction. 3. The centre image is intact but has been shaded if
Question : Study the given table and answer the question(s) that follow(s). The marks obtained by four students A, B, C, and D in Mathematics, Statistics, and Computers are given in the following table.
Who among the students has ranked first based on the total marks obtained as per the given table?
Option 1: C
Option 2: D
Option 3: B
Option 4: A
Correct Answer: D
Solution : The total marks obtained by each student are calculated by adding the marks obtained in Mathematics, Statistics, and Computers. For student A = 60 + 70 + 80 = 210 For student B = 50 + 45 + 55 = 150 For student C =
Question : The angles of elevation of a pole from two points which are 75 m and 48 m away from its base are $\alpha$ and $\beta$, respectively. If $\alpha$ and $\beta$ are complementary, then the height of the tower is:
Option 1: 54.5 m
Option 2: 61.5 m
Option 3: 60 m
Option 4: 50 m
Correct Answer: 60 m
Solution : Given, BD = 48 and BC = 75 In △ABD, $\tan β = \frac{AB}{BD}$ ⇒ $\tan β = \frac{AB}{48}$ ⇒ $AB = 48 \tan β$ ...........(1) In △ABC, $\tan α = \frac{AB}{BC}$ ⇒ $AB = 75 \tan α$ .............(2) Multiply by equation (1) from
Question : When was our national anthem first sung, and where?
Option 1: 24th January 1950 in Allahabad
Option 2: 24th January 1950 in Delhi
Option 3: 26th December 1942 in Calcutta
Option 4: 27th December 1911 in Calcutta
Correct Answer: 27th December 1911 in Calcutta
Solution : The correct answer is 27 December 1911 in Calcutta.
It was originally a Bengali poem that was later translated into Hindi. The translator of the poem is Abid Ali. It takes a total of 52 seconds to complete this anthem.
Question : The value of $\frac{427 \times 427 \times 427+325 \times 325 \times 325}{42.7 \times 42.7+32.5 \times 32.5-42.7 \times 32.5}$ is:
Option 1: 75.2
Option 2: 752
Option 3: 75200
Option 4: 7520
Correct Answer: 75200
Solution : $\frac{427 \times 427 \times 427+325 \times 325 \times 325}{42.7 \times 42.7+32.5 \times 32.5-42.7 \times 32.5}$ = $\frac{(42.7 \times 42.7+32.5 \times 32.5-42.7 \times 32.5)(42.7+32.5)(10^3)}{42.7 \times 42.7+32.5 \times 32.5-42.7 \times 32.5}$ = $75.2 × 10^3$ = $75200$ Hence, the correct answer is 75200.
Question : Directions: Find the missing number from the given responses.
Option 1: 128
Option 2: 64
Option 3: 72
Option 4: 108
Correct Answer: 64
Solution : On moving in the anticlockwise direction, (starting from 16), the first three numbers are the squares of 4, 6, and 8, and the next three are the cubes of 4, 6, and 8. (4)2 = 16; (6)2 = 36; (8)2 = 64;
Question : Dhiru can dig $\frac{1}{a}$ of a field in 20 hours. What fraction of the same field can Kaku dig 20 hours if the two of them can dig the field in 60 hours, working together at their respective rates?
Option 1: $\frac{(a-3)}{a}$
Option 2: $\frac{1}{3a}$
Option 3: $\frac{3a}{(3-a)}$
Option 4: $\frac{(a-3)}{3a}$
Correct Answer: $\frac{(a-3)}{3a}$
Solution : Time taken by Dhiru and Kaku together = 60 hours Efficiency of Dhiru and Kaku together = $\frac{1}{60}$ Time taken by Dhiru alone to dig $\frac{1}{a}$ of a field = 20 hours Efficiency of Dhiru = $\frac{1}{20a}$ Efficiency of Kaku = $\frac{1}{60}$ – $\frac{1}{20a}$ =
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