Staff Selection Commission Sub Inspector Exam
Question : Julie and Soma start from the same point and walk in opposite directions. Julie walks 4 km/hr faster than Soma. After 4 hours they are 40 km apart. How fast did each walk?
Option 1: Julie – 8 km/hr; Soma – 4 km/hr
Option 2: Julie – 7 km/hr; Soma – 3 km/hr
Option 3: Julie – 9 km/hr; Soma – 5 km/hr
Option 4: Julie – 10 km/hr; Soma – 6 km/hr
Correct Answer: Julie – 7 km/hr; Soma – 3 km/hr
Solution : Let's denote Soma's speed as S km/hr. Since Julie walks 4 km/h faster, her speed is = S + 4 km/hr After 4 hours, Soma has covered a distance of 4S km, and Julie has covered a distance
Question : In $\triangle$ ABC, $\angle$ C = 90$^{\circ}$. M and N are the midpoints of sides AB and AC, respectively. CM and BN intersect each other at D and $\angle$ BDC = 90$^{\circ}$. If BC = 8 cm, then the length of BN is:
Option 1: $6 \sqrt{3} {~cm}$
Option 2: $6 \sqrt{6} {~cm}$
Option 3: $4 \sqrt{6} {~cm}$
Option 4: $8 \sqrt{3} {~cm}$
Correct Answer: $4 \sqrt{6} {~cm}$
Solution : Given: BN and CM are medians of $\triangle$ ABC, D is the centroid of the triangle. D will divide BN in the ratio 2 : 1 $\therefore$ BD : DN = 2 : 1 Let BD = 2$x$ and DN = $x$ ⇒
Question : Identify the segment in the sentence which contains a grammatical error. She will come to work though it doesn’t rain tomorrow.
Option 1: though it doesn’t
Option 2: to work
Option 3: rain tomorrow
Option 4: She will come
Correct Answer: though it doesn’t
Solution : The correct choice is the first option.
Explanation: The conjunction, though, is used to introduce a contrast or concession, indicating a condition that contrasts with the main clause. In this context, the use of "though" is not appropriate because it suggests a
Question : What period is considered the first phase of the Green Revolution in India?
Option 1: Mid-1960s to Mid-1970s
Option 2: Mid-1940s to Mid-1950s
Option 3: Mid-1950s to Mid-1960s
Option 4: Mid-1970s to Mid-1980s
Correct Answer: Mid-1960s to Mid-1970s
Solution : The correct answer is the Mid-1960s to Mid-1970s.
With the assistance of a geneticist often referred to as the father of the Green Revolution (India), M.S. Swaminathan, the Indian Government initiated the Green Revolution in 1965. The first stage of the green
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.
This is a ________ story.
Option 1: make off
Option 2: made off
Option 3: made up
Option 4: make up
Correct Answer: made up
Solution : The correct choice is the third option.
This phrasal verb means to invent or fabricate. In the context of the sentence, it suggests that the story is fictional or not based on real events.
The meanings of the other options are as follows:
Question : Travelling a distance of 1000 km, a train slowed down due to repairs to the tracks. Its average speed for the trip was reduced by 75 km/hr and the time of travel increased by 3 hours. The original duration of the travel is:
Option 1: 6 hours
Option 2: 5 hours
Option 3: 5.5 hours
Option 4: 6.5 hours
Correct Answer: 5 hours
Solution : Distance, $d = 1000$ km Let $s$ be the average speed and $t$ be the time taken. $d = s × t$ ⇒ $s = \frac{1000}{t}$ ----------(i) ⇒ $d = (s-75)(t+3)$ ⇒ $st = st -75t +3s-225$ ⇒ $75t+225 = 3s$ ⇒ $75t+225 =
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2), and (3) that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
With these extra people, you can work easily with this job.
(1) deal
(2) improve
(3) cope
(4) No improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (3)
"Cope" means to deal effectively with a challenging situation or to manage and handle it successfully. It involves finding ways to adapt, overcome, or manage problems, stress, or adversity.
Therefore, the correct sentence is: "With these extra people,
Question : The compound to which H2 does not add is
Option 1: Biphenyl ethylene
Option 2: Tetraphenyl ethylene
Option 3: Tetra-a-naphthlethylene
Option 4: Tetra-9-phenanthrylethylene
Correct Answer: Tetraphenyl ethylene
Solution : The correct option is Tetraphenyl ethylene.
Tetraphenyl ethylene is a molecule with a distinct chemical structure that can not readily conduct addition reactions with hydrogen gas (H2) like other unsaturated hydrocarbons. This is due to the absence of the normal double or triple bonds
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. KJL, ONP, SRT, ?
Option 1: WVX
Option 2: VWX
Option 3: WXV
Option 4: VUW
Correct Answer: WVX
Solution : Given: KJL, ONP, SRT, ?
Add 4 to the place value of each letter of the previous term to obtain the next term – KJL→K + 4 = O; J + 4 = N; L + 4 = P ONP→O + 4 = S; N
Question : Select the most appropriate meaning of the underlined idiom. Doctors are raising hue and cry against the RTH bill.
Option 1: Enquire
Option 2: Protest
Option 3: Postpone
Option 4: Abandon
Correct Answer: Protest
Solution : The correct answer is the second option.
The idiom "raising hue and cry" means to make a loud and public outcry or protest about something. In the context of the sentence, it implies that the doctors are strongly protesting or expressing their opposition to the
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