Staff Selection Commission Sub Inspector Exam
Question : Anil Kumar Manibhai Naik was awarded the Padma Vibhushan Award in 2019 for his contribution to the field of ______.
Option 1: Public Affairs
Option 2: Art-Vocals-Folk
Option 3: Trade and Industry - Infrastructure
Option 4: Art-Acting-Theatre
Correct Answer: Trade and Industry - Infrastructure
Solution : The correct answer is Trade and Industry - Infrastructure.
Anil Kumar Manibhai Naik was awarded the Padma Vibhushan Award in 2019 for his contribution to the field of trade and industry—infrastructure. It provides logistics services that reduce the transaction costs
Question : Directions: In the following question, a series is given, with one/two term(s) missing. Choose the correct alternative from the given ones that will complete the series. $\frac{c}{6},\frac{e}{10},\frac{g}{14},\frac{i}{18},?$
Option 1: $\frac{k}{22}$
Option 2: $\frac{k}{11}$
Option 3: $\frac{p}{22}$
Option 4: $\frac{p}{11}$
Correct Answer: $\frac{k}{22}$
Solution : Given: $\frac{c}{6},\frac{e}{10},\frac{g}{14},\frac{i}{18},?$
Add 2 to the place value of the letters in the numerator and 4 to the denominator to obtain the next term – $\frac{c}{6}$→$\frac{c+2}{6+4}=\frac{e}{10}$ $\frac{e}{10}$→$\frac{e+2}{10+4}=\frac{g}{14}$ $\frac{g}{14}$→$\frac{g+2}{14+4}=\frac{i}{18}$ $\frac{i}{18}$→$\frac{i+2}{18+4}=\frac{k}{22}$
So, $\frac{k}{22}$ is the missing term in the series. Hence, the first option is correct
Question : Rakesh runs a coaching institute having 50 faculty members. The average monthly salary of 35 faculty members is INR 37,500. What will be the average monthly salary (in INR) of the other 15 faculty members, if the average monthly salary of all the 50 faculty members is found to be INR 30,000?
Option 1: 13,000
Option 2: 13,500
Option 3: 12,500
Option 4: 12,000
Correct Answer: 12,500
Solution : Given, Total = 50 Average salary of 35 faculty members = INR 37,500 ⇒ Total salary of 35 faculty members = 37500 × 35 = INR 13,12,500 The average of all the 50 faculty members = INR 30,000 ⇒ Total salary of 50 faculty members
Question : Directions: In the following question, which answer figure will complete the pattern in the question figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : On comparing the question figure and all the answer figures, the following figure will combine and make the complete pattern –
Hence, the fourth option is correct.
Question : A spherical lead ball of radius 10 cm is melted and small lead balls of radius 5 mm are made. The total number of possible small lead balls is (Take $\pi =\frac{22}{7}$)
Option 1: 8000
Option 2: 400
Option 3: 800
Option 4: 125
Correct Answer: 8000
Solution : The radius of the bigger ball = 10 cm The radius of smaller ball = 5 mm = 0.5 cm Volume of sphere = $\frac{4}{3}\pi r^3$ The volume of a bigger ball =$\frac{4}{3}\pi(10)^3\ cm^3$ Volume of smaller ball = $\frac{4}{3}\pi(0.5)^3$ Possible number of balls =
Question : A and B together can complete a project in 10 days. They started together, but A left after 2 days and the remaining work was completed by B in 12 days. In how many days can A complete the entire work while working alone?
Option 1: 15 days
Option 2: 20 days
Option 3: 30 days
Option 4: 45 days
Correct Answer: 30 days
Solution : Given: A and B together can complete a project in 10 days. Let the efficiency of A is $x$ and B is $y$ respectively. Total work = Efficiency × Time Total work is $(x+y)×10 = 10(x+y)$ They started together, but A left after 2
Question : Directions: Two different positions of the same dice are shown, the six faces of which are numbered from 1 to 6. Select the number that will be on the face opposite to the one showing 6.
Option 1: 3
Option 2: 4
Option 3: 2
Option 4: 5
Correct Answer: 3
Solution : According to the dice rule, if two positions of the same dice are given with two common faces but in different orientations, then out of those two common faces, the faces that are not common are opposite to each other. So, in the given figure,
Question : A train covers a distance of 540 km between two stations in 240 minutes. It travels at a speed of 90 km/hr to another station in 5 hours. What is the average speed of the train (in km/hr)?
Option 1: 112
Option 2: 110
Option 3: 100
Option 4: 120
Correct Answer: 110
Solution : Distance, $x_1 = 540$ km Time, $t_1 = 240$ minutes = $4$ hrs Time, $t_2 = 5$ hrs Speed, $s_2 = 90$ km/hr $\therefore$ Distance, $x_2 = s_2 × t_2 = 90 × 5 = 450$ km Average speed $ = \frac{x_1+x_2}{t_1+t_2}= \frac{540 + 450}{4+5}=
Question : Select the INCORRECTLY spelt word.
Option 1: Manipulate
Option 2: Postulate
Option 3: Stippulate
Option 4: Calculate
Correct Answer: Stippulate
Solution : The third option is correct.
The incorrectly spelled word is stippulate. It contains an extra consonant.
Stipulate is the correct spelling, and it means to state exactly what must be done.
Question : Directions: In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? pp_ _qp_pqq_pqq_ _qq_q
Option 1: pqpqpqp
Option 2: ppppqpq
Option 3: qqpqpqp
Option 4: qqqpppq
Correct Answer: ppppqpq
Solution : Given: pp _ _ qp _ pqq _ pqq _ _ qq _ q
To fill the series we have to divide the series – pp_ _q / p_pqq / _pqq_ / _qq_q Let's check the options – First option: pqpqpqp; pppqq /
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