Staff Selection Commission Sub Inspector Exam
Question : In a school, $\frac{5}{12}$ of the number of students are girls and the rest are boys. $\frac{4}{7}$ of the number of boys who are below 14 years of age, and $\frac{2}{5}$ of the number of girls who are 14 years or above 14 years of age. If the number of students below 14 years of age is 1120, then the total number of students in the school is:
Option 1: 1820
Option 2: 1290
Option 3: 1900
Option 4: 1920
Correct Answer: 1920
Solution : Let $x$ be the total number of students in the school. Number of girls = $\frac{5x}{12}$ Number of boys = $\frac{7x}{12}$ Number of boys who are below 14 years of age = $\frac{4}{7}×\frac{7x}{12}$ = $\frac{x}{3}$ Number of girls who are below 14 years of age
Question : The collection of poems titled 'Pakkaki Ottigilite' has been composed by:
Option 1: Kasturi Murali Krishna
Option 2: Suryadevara Rammohan Rao
Option 3: Varavara Rao
Option 4: K. Siva Reddy
Correct Answer: K. Siva Reddy
Solution : The correct answer is K. Siva Reddy.
K. Siva Reddy has composed a collection of poems titled 'Pakkaki Ottigilite', and he won the Saraswati Samman award in 2018 for this collection of poetry. K. Siva Reddy is a Telugu poet who has won
Question : A computer marked at Rs. 18,000 was sold at Rs. 15,840. The percentage of discount is:
Option 1: 13.6%
Option 2: 21.60%
Option 3: 12%
Option 4: 21%
Correct Answer: 12%
Solution : A computer marked at Rs. 18,000. Its selling price = Rs. 15,840 $\therefore$ Discount percentage = $\frac{\text{Marked price – Selling price}}{\text{Marked price}}×100$ = $\frac{18000-15840}{18000}×100$ = $\frac{2160}{18000}×100$ = $12\%$ Hence, the correct answer is 12%.
Question : Which of the following is the greatest four-digit number that is divisible by 15, 25, 40, and 75?
Option 1: 9200
Option 2: 9500
Option 3: 9600
Option 4: 9000
Correct Answer: 9600
Solution : Given numbers = 15, 25, 40, and 75 15 = 3 × 5 25 = 5 × 5 40 = 2 × 2 × 2 × 5 75 = 3 × 5 × 5 $\therefore$ LCM of 15, 25, 40 and 75 = 3 ×
Question : Directions: If A denotes +, B denotes ×, C denotes –, and D denotes ÷, then what will come in place of (?) in the following equation? 7 A 3 B 24 D 2 = 20 B ? A 3
Option 1: 2
Option 2: 20
Option 3: 14
Option 4: 7
Correct Answer: 2
Solution : Given: 7 A 3 B 24 D 2 = 20 B ? A 3
Let the missing number be a. After replacing the letters with the mathematical signs, we get – ⇒ 7 + 3 × 24 ÷ 2 = 20 × a + 3
Question : Which of the following statements is not correct regarding the Constitution of India (Eighty-sixth Amendment) Act, 2002?
Option 1: It made the provision for early childhood care and education to children below the age of six years under Article 45.
Option 2: It made it binding for the Government of India to set up a nodal ministry to ensure the effective implementation of these provisions under Article 75.
Option 3: Providing opportunities for education to his child or ward between the ages of 6-14 years was made a Fundamental Duty of a parent or guardian under Article 51A.
Option 4: Free and compulsory education for all children of the age of 6-14 years in the manner as determined by the State' was made a Fundamental Right under Article 21A.
Correct Answer: It made it binding for the Government of India to set up a nodal ministry to ensure the effective implementation of these provisions under Article 75.
Solution : The correct answer is It made it binding for the Government of India to set up a nodal ministry to
Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".
The guest stood quietly for (few) moments.
(1) a few moments
(2) the few moments
(3) few time
(4) No Improvement
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 1
Solution : The correct choice is the first option.
The determiner "few" should be replaced with a few to make the sentence grammatically correct. The quantifier "a few" is used to indicate a small, indefinite quantity, but it is greater than "few".
Therefore, the correct sentence should
Question : A boat can go 40 km downstream and 25 km upstream in 7 hours 30 minutes. It can go 48 km downstream and 36 km upstream in 10 hours. What is the speed (in km/hr) of the boat in still water?
Option 1: 6
Option 2: 12
Option 3: 9
Option 4: 15
Correct Answer: 9
Solution : Let the speed of a boat in still water be $x$ km/hr and the speed of current water be $y$ km/hr. Speed in downstream = $x+y$ Speed in upstream = $x-y$ Now, $\frac{40}{x+y}$ + $\frac{25}{x-y}$ = 7.5 ----------(i) ⇒ $\frac{240}{x+y}$ + $\frac{150}{x-y}$ = 45 ----------(ii)
Question : Directions: Select the correct combination of mathematical signs that can sequentially replace the * signs from left to right to balance the following equation. 16 * 35 * 5 * 20 * 4 * 89
Option 1: ×, –, +, ÷, =
Option 2: –, ÷, +, ×, =
Option 3: ×, ÷, +, –, =
Option 4: –, ×, ÷, +, =
Correct Answer: –, ÷, +, ×, =
Solution : Given: 16 * 35 * 5 * 20 * 4 * 89; Apply the mathematical operations according to the options to make the equation correct.
Let's check each option – First option: ×, –, +, ÷, = 16 × 35 –
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".
He assured me that he will return in an hour.
(1) He assured me
(2) that he will return
(3) in an hour.
(4) No Error
Solution : The correct choice is the second option.
Explanation: The verb "assured" is a reporting verb, and when reporting someone else's words, we often shift the verb tense back. In this case, "will" should be changed to "would" to maintain the correct sequence of tenses.
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