Staff Selection Commission Sub Inspector Exam
Question : Directions: In the following question, select the related number from the given alternatives. 3222 : 7222 :: 3323 : ?
Option 1: 9949
Option 2: 8838
Option 3: 7727
Option 4: 2212
Correct Answer: 7727
Solution : Given: 3222 : 7222 :: 3323 : ?
Like, 3222 : 7222→On replacing the digit 3 with 7 in 3222, we get – 7222 Similarly, for 3323 : ?→On replacing the digit 3 with 7 in 3323, we get – 7727
So, 3323 is related
Question : Directions: If A denotes +, B denotes ×, C denotes –, and D denotes ÷, then what will be the value of the following expression? 45 A 15 D 15 C 14 B 2 = ?
Option 1: 18
Option 2: 12
Option 3: 14
Option 4: 15
Correct Answer: 18
Solution : Given: 45 A 15 D 15 C 14 B 2 = ?
On interchanging the signs given in the equation, the equation becomes – = 45 + 15 ÷ 15 – 14 × 2 = 45 + 1 – 14 × 2 = 45 +
Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer.
He quarrelled with his boss___________of the consequences.
Option 1: confident
Option 2: devoid
Option 3: heedless
Option 4: weary
Correct Answer: heedless
Solution : The correct choice is the third option.
Heedless means showing a reckless lack of care or attention; carelessness. This is the correct answer, as it indicates that the person quarrelled without paying attention to or caring about the consequences.
The meanings of the other options
Question : Directions: Select the number that can replace the question mark (?) in the following series. 1, 11, 35, 79, ?, 251
Option 1: 152
Option 2: 149
Option 3: 105
Option 4: 150
Correct Answer: 149
Solution : Given: 1, 11, 35, 79, ?, 251
The pattern is as follows –
So, 149 is the missing number of the series. Hence, the second option is correct.
Question : Directions: Arrange the following words in the order in which they appear in an English dictionary. 1. Meticulous 2. Metric 3. Method 4. Mettle 5. Meter
Option 1: 5, 3, 1, 4, 2
Option 2: 3, 4, 5, 1, 2
Option 3: 5, 3, 1, 2, 4
Option 4: 5, 1, 3, 2, 4
Correct Answer: 5, 3, 1, 2, 4
Solution : Given: 1. Meticulous 2. Metric 3. Method 4. Mettle 5. Meter
Step 1: Compare the first, second, and third letters of each word. Since all the words start with the same letter M and are followed by e and t,
Question : The given bar graph shows the sales of cars from six branches of a dealer B1, B2, B3, B4, B5, and B6, during two consecutive years 2018 and 2019. Blue colour corresponds to the year 2018 and red colour corresponds to the year 2019.
The average sale of cars (from all branches) for the year 2018 is:
Option 1: 78
Option 2: 90
Option 3: 85
Option 4: 80
Correct Answer: 80
Solution : Average sale of cars (from all branches) for the year 2018 = $\frac{80+75+95+85+75+70}{6}$ = $\frac{480}{6}$ = 80 Hence, the correct answer is 80.
Question : If $a=331, b=336$ and $c=–667$, then the value of $a^3+b^3+c^3–3abc$ is:
Option 1: 1
Option 2: 63
Option 3: 3
Option 4: 0
Correct Answer: 0
Solution : $a^3+b^3+c^3-3abc=(a+b+c)(a^2+b^2+c^2-ab-bc-ca)$ If $a+b+c=0$, then $a^3+b^3+c^3-3abc=0$ Here $a+b+c= 331+336-667=0$ So, $a^3+b^3+c^3-3abc=0$ Hence, the correct answer is 0.
Question : Directions: Select the correct mirror image of the given pattern when the mirror is placed at MN as shown below.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear close to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on Line MN). So, the left side of the reflected image will appear
Question : Directions: In the given question, select the related letter from the given alternatives. KML : NPO :: CED : ?
Option 1: EGF
Option 2: GHF
Option 3: FHG
Option 4: HGF
Correct Answer: FHG
Solution : Given: KML : NPO :: CED : ?
Add 3 to the place value of each letter to get the corresponding letter in the next letter cluster.
KML→K + 3 = N; M + 3 = P; L + 3 = O⇒NPO Similarly, CED→C +
Question : Identify the correct type of food chain:
Dead animal→maggots→frog→snake
Option 1: Decomposer food chain
Option 2: Detritus food chain
Option 3: Grazing food chain
Option 4: Parasitic food chain
Correct Answer: Detritus food chain
Solution : The correct option is the Detritus food chain.
The detritus food chain (DFC) is a form of food chain that begins with dead organic matter as the major source of energy, and nutrients, including decaying plants, and animals. The detritus food chain,
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