Staff Selection Commission Sub Inspector Exam
Question : Direction: Following is the pie chart showing the result of the survey among 119060 people concerning tobacco. Study the pie diagram and answer the following question. Let P be the percentage of people using pipes, cigarettes, and bidi, and Let Q be the percentage of other tobacco habits. Then P is greater than Q by how much?
Option 1: 25%
Option 2: 10%
Option 3: 85%
Option 4: 75%
Correct Answer: 75%
Solution : Degree subtended by number of people using pipes, cigarettes and bidi $= 36^\circ + 180^\circ + 90^\circ = 306^\circ$ Degree subtended by number of people using tobacco $= 36^\circ$ The difference in degree subtended by two groups $= 306^\circ - 36^\circ = 270^\circ$ $\therefore$ P
Question : Directions: A cube is made by folding the given sheet. In the cube so formed, which of the following pairs of symbols will NOT be on the opposite faces?
Option 1: $ and #
Option 2: @ and %
Option 3: & and $
Option 4: # and >
Correct Answer: $ and #
Solution : In the 3D view of dice, 1. Each face out of the three faces in the 3D view should be from all the pairs. 2. Two opposite faces cannot appear adjacently in the 3D view of a folded cube figure. So, the opposite
Question : The least number among $\frac{4}{9}, \sqrt{\frac{9}{49}}, 0.45$ and $(0.8)^{2}$:
Option 1: $\frac{4}{9}$
Option 2: $\sqrt{\frac{9}{49}}$
Option 3: $0.45$
Option 4: $(0.8)^{2}$
Correct Answer: $\sqrt{\frac{9}{49}}$
Solution : Decimal value of given numbers: $ ⇒ \frac{4}{9} = 0.44$ $ ⇒ \sqrt{\frac{9}{49}} = \frac{3}{7} = 0.43$ $ ⇒ 0.45$ $ ⇒ (0.8)^{2} = 0.64$ By comparing these values, we get: The least number = $\sqrt{\frac{9}{49}}$ Hence, the correct answer is $\sqrt{\frac{9}{49}}$.
Question : Pipes P and Q can fill a tank in 18 and 27 minutes, respectively, whereas pipe R can empty the full tank in 54 minutes. P and Q were opened together for 6 minutes and then closed and R was opened. The tank was emptied by R alone in:
Option 1: 35 minutes
Option 2: 45 minutes
Option 3: 30 minutes
Option 4: 40 minutes
Correct Answer: 30 minutes
Solution : Given: Pipe P filling time = 18 minutes Pipe Q filling time = 27 minutes Pipe R empty time = 54 minutes P and Q opened for 6 minutes. Now, Capacity of tank = LCM of 18, 27, and 54 = 54 units Efficiency
Question : Directions: Four numbers have been given out of which three are alike in some manner, while one is different. Choose the odd one.
Option 1: 91
Option 2: 73
Option 3: 109
Option 4: 61
Correct Answer: 91
Solution : Let's check each option – First option: 91; It is not a prime number. Second option: 73; It is a prime number. Third option: 109; It is a prime number. Fourth option: 61; It is a prime number. Except for the first option, all other
Question : Directions: 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. C can be represented by 00, 33, etc, and O can be represented by 56, 88, etc. Similarly, you have to identify the set for the word BAKES.
Option 1: 11, 65, 03, 55, 20
Option 2: 40, 77, 24, 76, 32
Option 3: 34, 96, 41, 87, 10
Option 4: 02, 58, 31, 88, 04
Correct Answer: 34, 96, 41, 87, 10
Solution : Given: BAKES
Number representations of each letter – B→02, 11, 23, 34, 40 A→58, 65, 77, 89, 96 K→03, 12, 24, 30, 41 E→55, 69, 76, 87, 98 S→04, 10, 22, 31, 43
First option: 11, 65, 03, 55, 20; S
Question : The organisers of the Wimbledon Open did not allow players of two countries to compete in the Wimbledon 2022. One of them was Russia, which was the other country.
Option 1: Estonia
Option 2: Belarus
Option 3: China
Option 4: Ukraine
Correct Answer: Belarus
Solution : The correct option is Belarus.
The other country that was not allowed to compete in Wimbledon 2022 was Belarus. Players from both Russia and Belarus were banned due to the ongoing war in Ukraine. Ultimately, the organisers of Wimbledon lifted the ban for the
Question : Which chemical element has an atomic number of 31?
Option 1: Aluminium
Option 2: Gallium
Option 3: Indium
Option 4: Thallium
Correct Answer: Gallium
Solution : The correct option is Gallium
The chemical element with atomic number 31 is gallium. Gallium is a soft, silvery metal that is classified as a post-transition metal. It is in the boron group of the periodic table and has the symbol Ga. Gallium does not
Question : Bhavani spent 15% of his monthly income on kid’s education and 20% on food. 40% of the remaining she spent on sports and 30% on transport. She is left with an amount of Rs. 10,257 after all these expenditures. What is Bhavani’s monthly income?
Option 1: Rs. 45,800
Option 2: Rs. 48,000
Option 3: Rs. 52,600
Option 4: Rs. 81,965
Correct Answer: Rs. 52,600
Solution : Let Bhavani's monthly income be 100 units. Then after spending 15% of his monthly income on kid’s education and 20% on food, The remaining amount = (100 – 15 – 20) = 65 units 40% of the remaining she spent on sports and 30%
Question : In which one of the following states is laterite soil found?
Option 1: Kerala
Option 2: Uttar Pradesh
Option 3: Rajasthan
Option 4: Maharashtra
Correct Answer: Maharashtra
Solution : The correct option is Maharashtra.
The major areas of Maharashtra have laterite soil. It is a significant soil type in the region. Laterite soil is often red to reddish-brown in colour and rich in Iron and Aluminium oxides. It is most widespread in locations
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