Staff Selection Commission Sub Inspector Exam
Question : Ramesh borrowed a sum at 5% per annum simple interest from Rahul. He returns the amount after 5 years. Rahul returns 2% of the total amount received. How much did Ramesh borrow if he received Rs. 5?
Option 1: Rs. 250
Option 2: Rs. 200
Option 3: Rs. 150
Option 4: Rs. 175
Correct Answer: Rs. 200
Solution : Given: Rate of interest = 5% Time period = 5 years Let the Principal be $P$. Substituting the given values, we get: Simple Interest = $\frac{P×5×5}{100}$ Simple Interest = $\frac{P}{4}$ Amount = $P+\frac{P}{4}=\frac{5P}{4}$ According to the given condition, $\frac{5P}{4}×\frac{2}{100}=5$ ⇒ $\frac{P}{40}=5$ ⇒ $P=200$ Hence,
Question : A certain sum becomes 5 times in 3 years, at Simple Interest, then in how many years it will become 13 times?
Option 1: 6
Option 2: 15
Option 3: 9
Option 4: 12
Correct Answer: 9
Solution : Let the sum be P. Total amount for 3 years = 5P Simple Interest for 3 years = 5P – P = 4P If total amount = 13P, Simple Interest = 12P Using the unitary method, Since, in 3 years interest is 4P Therefore, 12P
Question : Directions: In the following question below are given some statements followed by some conclusions. Taking the given statements to be true, even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows from the given statements. Statements: I. Some knives are spoons. II. Some forks are knives. III. No fork is green. Conclusions: I. Some spoons are forks. II. Some knives are green. III.Some green are not knives. IV. Some knives are not green.
Option 1: Only conclusion IV follows
Option 2: Only conclusion III follows
Option 3: Only conclusions III and I follow
Option 4: Only conclusions I and II follow
Correct Answer: Only conclusion IV follows
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions – Conclusion I: Some spoons are forks – From the Venn diagram, it is evident that there is no direct relation between spoons and forks.
Question : Where are Huka Falls located?
Option 1: Spain
Option 2: Australia
Option 3: New Zealand
Option 4: Germany
Correct Answer: New Zealand
Solution : The correct option is New Zealand.
A waterfall is a point in a river or stream where water flows over a vertical drop or a series of steep drops. The Huka Falls are the largest falls on the Waikato River, which is near Taupo
Question : Directions: Select the option that indicates the correct arrangement of the given words in a logical and meaningful order. 1. Finger 2. Hand 3. Arm 4. Nail 5. Body
Option 1: 4, 1, 2, 3, 5
Option 2: 1, 2, 3, 5, 4
Option 3: 1, 2, 3, 4, 5
Option 4: 5, 4, 3, 2, 1
Correct Answer: 4, 1, 2, 3, 5
Solution : Given: 1. Finger 2. Hand 3. Arm 4. Nail 5. Body
The human body parts in increasing order of their size are as follows – Nail→Finger→Hand→Arm→Body
Thus, the order is 4, 1, 2, 3, 5. Hence, the first option is correct.
Question : Directions: Select the Venn diagram that best illustrates the relationship between the following classes. Animal, Jungle, Wild Animal
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Given: Animal, Jungle, Wild Animal
All wild animals come under the category of animal but the jungle is not related to wild animal or animals. Therefore, the circle of wild animals comes under the circle of animals but the circle of the jungle is not related
Question : If the perimeter of a square is $44\;\mathrm{cm}$, what is the diagonal (in $\mathrm{cm}$) of the square?
Option 1: $11\sqrt{2}$
Option 2: $2\sqrt{11}$
Option 3: $11$
Option 4: $44\sqrt{2}$
Correct Answer: $11\sqrt{2}$
Solution : Let the side length of a square be $ \text{s}\;\mathrm{cm}$. The perimeter of the square $=4 \times \text{s}$ Given that the perimeter is $44\;\mathrm{cm}$. The side length of the square $=\frac{44}{4} = 11\;\mathrm{cm}$ The diagonal of a square $=\sqrt{2} \times \text{s }$ The length of
Question : When operated separately, pipe A takes 5 hours less than pipe B to fill a cistern, and when both pipes are operated together, the cistern gets filled in 6 hours. In how much time (in hours) will pipe B fill the cistern, if operated separately?
Option 1: 15
Option 2: 18
Option 3: 10
Option 4: 9
Correct Answer: 15
Solution : Let the time it takes for pipe B to fill the cistern when operated separately as $t$. Then, the time it takes for pipe A to fill the cistern when operated separately is $(t - 5)$. The rates of pipes A and B are $\frac{1}{(t
Question : World Water Day is observed on:
Option 1: 8th March
Option 2: 14th March
Option 3: 22nd March
Option 4: 25th March
Correct Answer: 22nd March
Solution : The correct option is 22nd March.
World Water Day is observed annually on March 22nd. This international day is dedicated to advocating for the sustainable management of water resources, the importance of clean water, and access to safe drinking water for people around
Question : The narrow zone of contact between the lithosphere, hydrosphere and atmosphere where natural vegetation and wildlife exist is called the:
Option 1: Geosphere
Option 2: Biosphere
Option 3: Troposphere
Option 4: Exosphere
Correct Answer: Biosphere
Solution : The correct answer is Biosphere.
The biosphere is home to natural vegetation and wildlife. The biosphere, or narrow zone of contact between the lithosphere, hydrosphere, and atmosphere, is home to interdependent and mutually dependent living things. This system of life support is known as an
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