Staff Selection Commission Sub Inspector Exam
Question : Directions: From the given answer figures, select the one in which the question figure is hidden/embedded.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Because there is no restriction on the rotation of the figure, we will check all the possible angles where the question figure can fit itself in the given option figures. By comparison of all the option figures, the given question figure is embedded only in the
Question : Directions: A health drink company prepares the drink in three flavours: P, Q, and R. The production of three flavours over six years has been expressed on a bar graph below. Study the graph and answer the question. Production of 3 different flavours of health drinks by the company in 6 years (in lakh bottles):
What was the approximate decline in the production of flavour R in 2010 as compared to the production of 2008 in percentage?
Option 1: 43.33%
Option 2: 33.33%
Option 3: 30.33%
Option 4: 53.33%
Correct Answer: 33.33%
Solution : We have, The production of flavour R in 2010 = 40 lakh bottles The production of flavour R in 2008 = 60 lakh bottles Percentage Change = $\frac{\text{The production of flavour R in 2008 -The production of flavour R in 2010}}{\text{ The production of flavour
Question : Direction: Following is the pie chart showing the result of the survey among 119060 people concerning tobacco. Study the pie diagram and answer the following question.
The number of people smoking cigarettes is:
Option 1: 53905
Option 2: 59305
Option 3: 59530
Option 4: 11906
Correct Answer: 59530
Solution : The total number of people = 119060 Degree subtended by the number of people smoking cigarettes = 180$^\circ$ Number of people smoking cigarettes = $\frac{180^\circ}{360^\circ}\times 119060$ = 59530 Hence, the correct answer is 59,530.
Question : Direction: The table given below shows the statistics of the top 10 scores in IPL 2016. A few entries are missing in the table. Here INN, AVG and SR stand for innings played, batting average, and batting strike rate respectively. Based on the table answer the following question. (Strike rate = $\frac{\text{Runs}}{\text{balls faced}}\times $100) and AVG = $\frac{\text {Runs}}{\text {INN – NOT OUT}}$
Approximately by what percentage strike rate of Rahane is greater/lower than the strike rate of Kock?
Option 1: 12% greater
Option 2: 12% lower
Option 3: 10% greater
Option 4: 10% lower
Correct Answer: 12% lower
Solution : Rahane's strike rate = $\frac{\text{Runs}}{\text{Ball faced}}\times100$ = $\frac{461}{364}\times100 = 127$ Kock strike rate = $\frac{\text{Runs}}{\text{Ball faced}}\times100$ = $\frac{385}{266}\times100 = 145$ $\therefore$ Rahane's strike rate is lower than Kock's. Required percentage = $\frac{145-127}{145}\times100$ = $\frac{18}{145}\times100$ = 12% Hence, the correct answer is 12% lower.
Question : Which river has tributaries named Dri, Mathun, Talon, Eme, Ahi, Emra and Awa?
Option 1: Kaveri
Option 2: Dibang
Option 3: Lohit
Option 4: Godavari
Correct Answer: Dibang
Solution : The correct answer is Dibang
The principal tributaries of the Dibang are the Sisar, Mathun, Tangon, Dri, Ithun, and Emra. Throughout its course, the Dibang is joined by numerous tributaries, including the Airi, Ilu, Imu, Ahi, Ashu, Epipani, and Eze (Deopani) rivers.
Question : A balance of a trader weighs 20% less than it should be. Still, the trader marked up his goods to get an overall profit of 35%. What is the mark-up on the cost price?
Option 1: 7%
8%
9%
8.5%
Solution : Let the cost price of 1000 gm be Rs. 100. The trader weighs 20% less than it should be. So, he gives 800 gm, which is worth the cost price of Rs. 80. He still earns an overall profit of 35%. So, marked price $=\frac{100+
Question : A wound stops bleeding due to the process of clot formation called:
Option 1: Coagulation
Option 2: Fermentation
Option 3: Transfusion
Option 4: Incubation
Correct Answer: Coagulation
Solution : The correct option is coagulation.
The clotting process, known as coagulation, causes a cut to cease bleeding. When a mosquito bites us, the blood does not clot. It is possible to stop our body from losing too much blood by using a process of
Question : $\frac{1}{3-\sqrt{8}}-\frac{1}{\sqrt{8}-\sqrt{7}}+\frac{1}{\sqrt{7}-\sqrt{6}}-\frac{1}{\sqrt{6}-\sqrt{5}}+\frac{1}{\sqrt{5}-2}=?$
Option 1: 5
Option 2: 4
Option 3: 3
Option 4: 2
Correct Answer: 5
Solution : $\frac{1}{3-\sqrt{8}}-\frac{1}{\sqrt{8}-\sqrt{7}}+\frac{1}{\sqrt{7}-\sqrt{6}}-\frac{1}{\sqrt{6}-\sqrt{5}}+\frac{1}{\sqrt{5}-2}$ Rationalise the denominators, $=(\frac{\sqrt{8}+3}{1})-(\frac{\sqrt{7}+\sqrt{8}}{1})+(\frac{\sqrt{6}+\sqrt{7}}{1})-(\frac{\sqrt{5}+\sqrt{6}}{1})+(\frac{2+\sqrt{5}}{1}$) $=\sqrt{8}+3-\sqrt{8}-\sqrt{7}+\sqrt{7}+\sqrt{6}-\sqrt{6}-\sqrt{5}+\sqrt{5}+2$ $=3+2$ $= 5$ Hence, the correct answer is 5.
Question : Identify the segment in the sentence which contains a grammatical error.
He wondered what was the reason for her refusal to accompany him.
Option 1: to accompany him
Option 2: was the reason
Option 3: He wondered what
Option 4: for her refusal
Correct Answer: was the reason
Solution : The correct answer is the second option.
Explanation: When expressing indirect or reported questions, the correct structure is to reverse the order of the subject and the auxiliary verb. The correct construction is that he wondered what the reason was for
Question : How much percentage should a racer increase speed to reduce the time by 20% to cover a fixed distance?
Option 1: 25%
Option 2: 30%
Option 3: 40%
Option 4: 35%
Correct Answer: 25%
Solution : We know, $\text{Speed}=\frac{\text{Distance}}{{\text{Time}}}$ $\text{Speed}\propto\frac{\text{1}}{{\text{Time}}}$ If the distance remains constant, then speed is inversely proportional to time. If the time is reduced by 20%, the new time is 80% (or 0.8 times) of the original time. Since speed is inversely proportional to time, the new speed
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