Staff Selection Commission Sub Inspector Exam
Question : What are the values of $x$ and $y$, respectively, from the following equations? $6x + 7y = 5xy$ $10y – 4x = 4xy$
Option 1: 3 and 4
Option 2: 4 and 5
Option 3: 2 and 4
Option 4: 2 and 5
Correct Answer: 2 and 4
Solution : Here, we have, $6x + 7y = 5xy$ .................( 1) $10y - 4x = 4xy$.................( 2) On dividing eq(1) and eq(2) by xy, we get, $⇒ \frac{6}{y} + \frac{7}{x} = 5$............(3) $⇒ \frac{10}{x} - \frac{4}{y} = 4$..............(4) Now, multiply eq(3) by 2 and
Question : Directions: In the following question, select the related number from the given alternatives. 36 : 50 :: 64 : ?
Option 1: 78
Option 2: 70
Option 3: 72
Option 4: 82
Correct Answer: 82
Solution : Given: 36 : 50 :: 64 : ?
Like, 36 : 50→62 = 36; (72) + 1 = 49 + 1 = 50 Similarly, for 64 : ?→82 = 64; (92) = 81 + 1 = 82
So, 64
Question : Directions: A paper is folded and cut as shown below. How will it appear when unfolded?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the given folded paper is unfolded, it will look like –
Hence, the second option is correct.
Question : Who wrote the book ‘India Wins Freedom’?
Option 1: Vijaya Lakshmi Pandit
Option 2: Mahatma Gandhi
Option 3: Maulana Abul Kalam Azad
Option 4: Syama Prasad Mukherjee
Correct Answer: Maulana Abul Kalam Azad
Solution : The correct option is Maulana Abul Kalam Azad.
"India Wins Freedom" was written by Maulana Abul Kalam Azad, a prominent Indian Muslim leader and freedom fighter. The book is an insightful memoir tracing India's independence struggle through his unique perspective, offering
Question : Study the following chart and answer the question. What was the difference in the number of B-type of employees during 1997 and 1998?
Option 1: 2285
Option 2: 2222
Option 3: 2325
Option 4: 2654
Correct Answer: 2285
Solution : Percentage of B-type employees in 1997 = 6% Total number of employees in 1997 = 42,980 Total number of B-type employees in 1997 = $\frac{42980 \times 6}{100}$ = 2579 Percentage of B-type employees in 1998 = 10% Total number of employees in 1998 = 48,640
Question : Which state is the largest producer of mica in India?
Option 1: Madhya Pradesh
Option 2: Rajasthan
Option 3: Jharkhand
Option 4: Andhra Pradesh
Correct Answer: Andhra Pradesh
Solution : The correct option is Andhra Pradesh.
Andhra Pradesh is one of the significant producers of mica in India. Mica is a mineral that finds applications in various industries, including electrical and electronics, cosmetics, paints, and more. The state of Andhra Pradesh has several mica
Question : Directions: Select the option figure that is embedded in the given figure as its part (rotation is NOT allowed).
Solution : Since there is a restriction on the rotation of the figure, we will check which of the option figures can exactly fit in the given question figure. By comparison of all the option figures, only the first option figure is embedded in the given question figure.
Question : The cyclone that brought devastation in Bangladesh was named as
Option 1: Shary
Option 2: Sidr
Option 3: Wendy
Option 4: Erin
Correct Answer: Sidr
Solution : The correct answer is Cyclone Sidr.
Cyclone Sidr hit Bangladesh in November 2007. It was a tropical cyclone formed over Bay of Bengal. It was a super cyclone.
Other tropical cyclones-
Hurricanes- USA Typhoons- China and Japan Willy-Willy- Australia
Question : Directions: Two different positions of the same dice are shown, the six faces of which are numbered from 1 to 6. Select the number that will be on the face opposite to the one showing 1.
Option 1: 3
Option 2: 4
Option 3: 6
Option 4: 2
Correct Answer: 6
Solution : According to the dice rule, if two positions of the same dice are given with two common faces but in different orientations, then out of those two common faces, the faces that are not common are opposite to each other. While considering Figures 1 and
Question : A bus starts running with an initial speed of 33 km/hr and its speed increases every hour by a certain amount. If it takes 7 hours to cover a distance of 315 km, what will be the hourly increment (in km/hr) in the speed of the bus?
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 4
Solution : Initial speed = 33 km/hr Total time = 7 hours Total distance = 315 km Distance travelled in the first hour = 33 km Let the hourly increment in the speed of the bus be $x$ km/hr. So, $33+(33+x)+(33+2x)+(33+3x)+(33+4x)+(33+5x)+(33+6x) = 315$ $⇒ 21x+231 = 315$
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