Staff Selection Commission Sub Inspector Exam
Question : Select the INCORRECTLY spelt word.
Option 1: Isle
Option 2: Braed
Option 3: Achieve
Option 4: Amicable
Correct Answer: Braed
Solution : The correct choice is the second option.
Analysing each given word in the options carefully:
Question : Find the fourth proportional of 22, 66 and 11.
Option 1: 23
Option 2: 33
Option 3: 17
Option 4: 39
Correct Answer: 33
Solution : Given numbers: 22, 66, and 11 Let the fourth proportion be $x$. For the numbers a, b, c, and d if a ∶ b ∶ ∶ c ∶ d then, ad = bc Where d is the fourth proportional of a, b, and c. ⇒
Question : If $3A=5B$, what is the value of $\frac{A+B}{B}$?
Option 1: $\frac{8}{3}$
Option 2: $\frac{8}{5}$
Option 3: $\frac{5}{8}$
Option 4: $\frac{5}{3}$
Correct Answer: $\frac{8}{3}$
Solution : Given: $3A=5B$ ⇒ $\frac{A}{B}=\frac{5}{3}$ Let, $A=5k, B=3k$ So, $\frac{A+B}{B}=\frac{5k+3k}{3k}=\frac{8}{3}$ Hence, the correct answer is $\frac{8}{3}$.
Question : Select the INCORRECTLY spelt word
Option 1: Whorle
Option 2: Winch
Option 3: Weird
Option 4: Wench
Correct Answer: Whorle
Solution : The correct answer is the fourth option.
The incorrectly spelled word is:
Whorle
The correct spelling is "whorl". It typically refers to a circular pattern or arrangement, such as the fingerprint whorls.
The meanings of the other options are as follows:
A winch is a
Question : The total surface area of a solid hemisphere is 4158 cm2. Find its volume (in cm3).
Option 1: 462
Option 2: 9702
Option 3: 1848
Option 4: 19404
Correct Answer: 19404
Solution : Given: total surface area of solid hemisphere = 4158 cm2 Let the radius of the hemisphere be $r$. The total surface area of a solid hemisphere = $3\pi r^2$ ⇒ $3\pi r^2=4158$ ⇒ $3×\frac{22}{7}×( r)^2=4158$ ⇒ $(r)^2=441$ $\therefore r=21$ Now, volume of hemisphere =$\frac{2}{3}×
Question : Directions: In the given figure, how many yellow birds are there?
Option 1: 25
Option 2: 32
Option 3: 18
Option 4: 20
Correct Answer: 32
Solution : According to the question we have to find the common region of the circles between birds and yellow and the shaded region is common to both yellow and birds.
The intersection of the circle representing yellow and birds is the number of yellow birds. So,
Question : Directions: In the following question, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 4E, 8I, 13N, 19T, ?
Option 1: 26U
Option 2: 26A
Option 3: 26Z
Option 4: 25Y
Correct Answer: 26A
Solution : Given: 4E, 8I, 13N, 19T, ?
For number-based series – Add consecutive natural numbers to the previous numeric term of the given series. 4 + 4 = 8; 8 + 5 = 13; 13 + 6 = 19; 19 + 7 = 26 For letter-based
Question :
Directions: In the following question, select the related word from the given alternatives. Powerful : Weak :: Victory : ?
Option 1: Winning
Option 2: Strong
Option 3: Defeat
Option 4: Peace
Correct Answer: Defeat
Solution : Given: Powerful : Weak :: Victory : ?
Like, powerful is the antonym of weak. Similarly, defeat is the antonym of victory.
Hence, the third option is correct.
Question : Directions: Six characters A, B, C, 1, 2, and 3 are written on different faces of a dice. Two positions of this dice are shown in the figure. Find the character on the face opposite to C.
Option 1: A
Option 2: 2
Option 3: 3
Option 4: B
Correct Answer: 2
Solution : Taking dice positions 1 and 2 with 1 as the common face.
Moving clockwise from the common face with 1 –
So, the opposite pairs are –
Therefore, the opposite face of the C is 2. Hence, the second option is correct.
Question : Directions: In a certain code language, MOBILE is written as NQEMQK, and BISHOP is written as CKVLTV. How will CHARGE be written in that language?
Option 1: DJEVLJ
Option 2: DJDWLK
Option 3: DJDVLK
Option 4: DJDVKL
Correct Answer: DJDVLK
Solution : Given: MOBILE is written as NQEMQK, and BISHOP is written as CKVLTV.
Add 1, 2, 3, and so on in the positional value of each letter of MOBILE, to obtain the required code – M + 1 = N; O + 2 = Q; B
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