Staff Selection Commission Sub Inspector Exam
Question : What is the simplified value of: $7 \frac{1}{3} \div 2 \frac{1}{2}$ of $1 \frac{3}{5}-\left(\frac{3}{8}+\frac{1}{7} \times 1 \frac{3}{4}\right)-\frac{5}{24}$
Option 1: $1$
Option 2: $2$
Option 3: $\frac{1}{24}$
Option 4: $\frac{1}{12}$
Correct Answer: $1$
Solution : $7 \frac{1}{3} \div 2 \frac{1}{2}$ of $1 \frac{3}{5}-\left(\frac{3}{8}+\frac{1}{7} \times 1 \frac{3}{4}\right)-\frac{5}{24}$ $= \frac{22}{3} \div \frac{5}{2}\times \frac{8}{5}-\left(\frac{3}{8}+\frac{1}{7} \times \frac{7}{4}\right)-\frac{5}{24}$ $= \frac{22}{3} \div 4-\left(\frac{3}{8}+\frac{1}{4} \right)-\frac{5}{24}$ $= \frac{22}{12}-\left(\frac{5}{8} \right)-\frac{5}{24}$ $= \frac{44-15-5}{24}$ $= \frac{24}{24}$ $=1$ Hence, the correct answer is $1$.
Question : After allowing a 10% discount, a dealer wishes to sell a machine for Rs. 2,700. At what price must the machine be marked?
Option 1: Rs. 270
Option 2: Rs. 3,000
Option 3: Rs. 2,970
Option 4: Rs. 2,430
Correct Answer: Rs. 3,000
Solution : Discount = 10% of marked price Selling price = Rs. 2,700 $\therefore$ Marked Price = $\frac{2700×100}{90}$ = Rs. 3,000 Hence, the correct answer is Rs. 3,000.
Question : Select the most appropriate one-word substitution for the given group of words.
A deceased holy person’s remains or belongings kept for reverence
Option 1: souvenir
Option 2: relic
Option 3: trophy
Option 4: memento
Correct Answer: relic
Solution : The correct choice is the second option.
Explanation: We have to look for a word that specifically refers to a deceased holy person's remains or belongings kept for reverence. Relic precisely fits this description. A relic is an object associated with a saint or holy
Question : The Battle of Tukaroi known as the Battle of Bajaura or the Battle of Mughulmar was fought between the Mughal Empire and the Bengal Sultanate in which of the following year______?
Option 1: 1595
Option 2: 1585
Option 3: 1532
Option 4: 1575
Correct Answer: 1575
Solution : The correct answer is 1575.
The Battle of Tukaroi, also known as the Battle of Bajaura or Mughulmar, was fought between the Mughal Empire and the Bengal Sultanate in 1575. It was fought between Akbar and the Bengal Sultanate. In this fight, the Bengal sultanate
Question : If a man goes from place A to B at a speed of 12 km/hr and return at a speed of 18 km/hr, then the average speed for the whole journey is:
Option 1: $6 \mathrm{~km} / \mathrm{hr}$
Option 2: $30 \mathrm{~km} / \mathrm{hr}$
Option 3: $14 \frac{2}{5} \mathrm{~km} / \mathrm{hr}$
Option 4: $15 \mathrm{~km} / \mathrm{hr}$
Correct Answer: $14 \frac{2}{5} \mathrm{~km} / \mathrm{hr}$
Solution : Given: A man goes from place A to B at a speed of 12 km/hr and returns at a speed of 18 km/hr. We know that, Average speed = $\frac{2\times12\times18}{12+18}$ = $\frac{2\times12\times18}{30}$ = $\frac{72}{5}$ = $14 \frac{2}{5}$ Hence, the correct answer
Question : Directions: In a certain coding system, if CHICANERY is written as DNODTHVKS, how will CRANE be written in the same coding system?
Option 1: DKTHV
Option 2: DOTKV
Option 3: CJSGU
Option 4: HKSHO
Correct Answer: DKTHV
Solution : Given: CHICANERY is written as DNODTHVKS.
Each letter of CHICANERY has a unique coded letter – C→D; H→N; I→O; A→T; N→H; E→V; R→K; Y→S Thus, CHICANERY is coded as DNODTHVKS. Similarly, follow the same pattern for CRANE – C→D; R→K; A→T; N→H; E→V
Thus, CRANE
Question : Directions: In the following question, select the missing number from the given responses.
Option 1: 7
Option 2: 6
Option 3: 4
Option 4: 5
Correct Answer: 4
Solution : Given:
The pattern can be observed running horizontally along the rows. Row 1: (6 × 5) ÷ 3 = 30 ÷ 3 = 10 Row 2: (2 × 8)
Question : What is the thick fog-like layer in the atmosphere made up of smoke and fog called?
Option 1: Smog
Option 2: Slog
Option 3: Aerosol
Option 4: Suspension
Correct Answer: Smog
Solution : The correct option is Smog.
Smog is a type of air pollution characterized by a mixture of smoke, and fog that is generally caused by the interaction of pollutants such as car emissions, industrial gases, and sunlight, which results in the development of ground-level
Question : According to the 2011 Census, which Indian state has the highest sex ratio?
Option 1: Tamil Nadu
Option 2: Manipur
Option 3: Kerala
Option 4: Meghalaya
Correct Answer: Kerala
Solution : The correct answer is Kerala.
Kerala state has the highest literacy rate in India, according to the 2011 Census. The literacy rate for men is 96.1%, while the rate for women is 92.1%. The lowest literacy percentage is seen in Bihar (71.2% for men
Question : Directions: In the following question, you have to identify the correct response from the given premises stated according to the following symbols: If – stands for +; + stands for × and × stands for –; then which one of the following equations is not correct?
Option 1: 22 + 7 – 3 × 9 = 148
Option 2: 33 × 5 – 10 + 20 = 228
Option 3: 7 + 28 – 3 × 52 = 127
Option 4: 44 – 9 + 6 × 11 = 87
Correct Answer: 7 + 28 – 3 × 52 = 127
Solution : Given: – stands for +; + stands for × and × stands for –.
Let's check the options – First option: 22 + 7 – 3 × 9 = 148 On replacing ⇒ 22 × 7 +
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