Staff Selection Commission Sub Inspector Exam
Question : Directions: A circular sheet of paper is folded in a particular manner, punched once, and then unfolded. Find out how the paper was folded and punched from amongst the answer figures.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the given unfolded paper is folded, it will look like –
Hence, the second option is correct.
Question : If $(2000)^{10} = 1.024×10^{k}$, then the value of $k$ is:
Option 1: 33
Option 2: 30
Option 3: 34
Option 4: 31
Correct Answer: 33
Solution : Given: $(2000)^{10} = 1.024×10^{k}$ ⇒ $(2×1000)^{10} = \frac{1024}{1000}×10^{k}$ ⇒ $2^{10}×10^{30} = 2^{10}×10^{k–3}$ ⇒ $10^{30} =10^{k-3}$ By comparing the powers, we get: $(k-3) = 30$ $\therefore k = 33$ Hence, the correct answer is 33.
Question : In what type of rainfall do winds move out of a high-pressure area, with wind direction clockwise in the northern hemisphere and anti-clockwise in the southern hemisphere?
Option 1: Orography
Option 2: Cyclones
Option 3: Anticyclone
Option 4: Convection
Correct Answer: Anticyclone
Solution : The correct answer is Anticyclone.
An anticyclone is a meteorological phenomenon characterised by a large-scale circulation of winds around a central area of high atmospheric pressure. In the Northern Hemisphere, the winds rotate clockwise, while in the Southern Hemisphere, they rotate anticlockwise when viewed from
Question : Directions: If + means –, – means ×, × means ÷, ÷ means +, then what will come in place of the question mark (?) in the following equation? 14 – 7 ÷ 42 × 6 + 33 = ?
Option 1: 72
Option 2: 84
Option 3: 68
Option 4: 56
Correct Answer: 72
Solution : Given: + means –, – means ×, × means ÷, ÷ means + 14 – 7 ÷ 42 × 6 + 33 = ?
After interchanging the signs the equation becomes – 14 × 7 + 42 ÷ 6 – 33 = ? 14 ×
Question : Directions: In a code language, food is fresh is coded as dy in pq, bring fresh food is coded as tq pq dy, and food is hot is coded as dy in to. What is the code for the word fresh?
Option 1: In
Option 2: to
Option 3: pq
Option 4: dy
Correct Answer: pq
Solution : Given: 1. food is fresh ⇒ dy in pq 2. bring fresh food ⇒ tq pq dy 3. food is hot ⇒ dy in to
By comparing all the coded sentences, we find that – In sentences 1 and 2, food and fresh are common
Question : Directions: In the following question, some statements are given followed by some conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any follows from the given statements. Statements: 1. All roses are yellow. 2. Some roses are flowers. Conclusions: I. Some roses are yellow. II. All roses are flowers.
Option 1: Only conclusion I follows
Option 2: Only conclusion II follows
Option 3: Neither conclusion I nor II follows
Option 4: Both conclusions I and II follow
Correct Answer: Only conclusion I follows
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): Some roses are yellow – Based on the given statements, it is given that all roses are yellow and some are the
Question : In a test consisting of 140 questions, a candidate correctly answered 70% of the first 80 questions. What percentage of the remaining questions does the candidate need to correctly answer to score 60% on the test?
Option 1: $35\%$
Option 2: $46 \frac{2}{3}\%$
Option 3: $45 \frac{1}{3}\%$
Option 4: $40\%$
Correct Answer: $46 \frac{2}{3}\%$
Solution : According to the question, Correctly answered in first 80 questions = 0.7 × 80 = 56 Remaining questions = 140 − 80 = 60 Target correct answers = 0.6 × 140 = 84 Now, Remaining correct answers needed = Target correct answers − Correctly
Question : Which of the following statements is true?
Option 1: Dehusked cereals and pulses are more nutritious.
Option 2: Whole-grain cereals and pulses are more nutritious.
Option 3: Processed cereal products are nutrient-dense.
Option 4: Breakfast cereals are nutrient-dense.
Correct Answer: Whole-grain cereals and pulses are more nutritious.
Solution : The correct option is Whole-grain cereals and pulses are more nutritious.
Because they contain all three components of the grain or pulse, including the bran, germ and endosperm, which are rich in vitamins, minerals, and fibre, whole grain
Question : The ratio of the total surface area and volume of a sphere is 2 : 7. Its radius is:
Option 1: 7.5 cm
Option 2: 10.5 cm
Option 3: 10 cm
Option 4: 7 cm
Correct Answer: 10.5 cm
Solution : Let the radius of the sphere be $r$. Total surface area of the sphere = $4 \pi r^2$ Volume of the sphere = $\frac{4}{3} \pi r^3$ According to the question, $4 \pi r^2 : \frac{4}{3} \pi r^3 = 2 : 7$ ⇒ $\frac{3}{r} =
Question : The price of one shirt is INR 700 in a shop, on which a 10% discount is available for all customers. An additional 20% discount is there for the customers who pay in cash. What is the amount a customer has to pay for a shirt if he pays in cash?
Option 1: INR 432
Option 2: INR 504
Option 3: INR 523
Option 4: INR 514
Correct Answer: INR 504
Solution : The marked price of the shirt = INR 700 1st discount = 10% 2nd discount = 20% We know that, For two successive discounts selling price = $\frac{100-\text{Discount}_1\%}{100}× \frac{100-\text{Discount}_2\%}{100}×$ marked price = $\frac{100-10}{100}× \frac{100-20}{100}×700$ = $\frac{90}{100}× \frac{80}{100}×700$ = $504$ Hence, the correct answer is
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