Staff Selection Commission Combined Higher Secondary Level Exam
Question : 16 women take 12 days to complete a work which can be completed by 12 men in 8 days. 16 men started working and after 3 days 10 men left and 4 women joined them. How many days will it take them to complete the remaining work?
Option 1: 4
Option 2: 6
Option 3: 8
Option 4: 10
Correct Answer: 6
Solution : Work done by 12 men in 8 days = Work done by 16 women in 12 days ⇒ 12 × 8 men = 16 × 12 women ⇒ 1 man = 2 women Now, work done by 12 men in 1 day = $\frac{1}{8}$ Work
Question : A person invested a total sum of Rs. 15,500 in three schemes of simple interest at the annual rate of 4 percent, 6 percent, and 10 percent. At the end of one year, he got the same interest in all three schemes. What is the sum invested at the rate of 6 percent?
Option 1: Rs. 5400
Option 2: Rs. 5000
Option 3: Rs. 5500
Option 4: Rs. 6500
Correct Answer: Rs. 5000
Solution : Total investment = Rs. 15,500 The annual rates of simple interest for these schemes are 4%, 6%, and 10%, respectively. Let's denote the sums invested in the schemes with rates of 4%, 6%, and 10% as P1, P2, and P
Question : Directions: Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. You have to decide which conclusions logically follow from the given statements. Statements: I. Some clowns are scary. II. All scary are ghosts. III. Some ghosts are friendly. Conclusions: I. All ghosts are friendly II. All clowns are ghosts.
Option 1: Only conclusion (I) follows
Option 2: Neither conclusion (I) nor (II) follows
Option 3: Only conclusion (II) follows
Option 4: Both conclusions (I) and (II) follow
Correct Answer: Neither conclusion (I) nor (II) follows
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions – Conclusion I: All ghosts are friendly – From the Venn diagram, we can see that the circle representing ghosts intersect the circle
Question : Directions: In the following question below are given some statements followed by some conclusions based on those statements. 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 the given statements. Statements: I. All A is T. II. No T is N. Conclusions: I. Some N is T. II. All N is A. III. Some T is A.
Option 1: Only conclusion I follows
Option 2: Only conclusion III follows
Option 3: Only conclusion II follows
Option 4: All conclusions follow
Correct Answer: Only conclusion III follows
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): Some N is T – From the Venn diagram, it is evident that there is a negative relation between N and T.
Question : The golden view of sea shells is due to the:
Option 1: Diffraction
Option 2: Dispersion
Option 3: Polarisation
Option 4: Reflection
Correct Answer: Polarisation
Solution : The correct answer is Polarisation.
The Golden View of the sea shell is due to the polarisation phenomena. It is because of the reflection of the polarised light that results in the Golden view of a sea shell. Polarisation of light refers to the orientation
Question : Directions: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? _ cb _ ca _ bacb _ ca _ bac_ d
Option 1: badddb
Option 2: bbbddd
Option 3: addddb
Option 4: addbbb
Correct Answer: addddb
Solution : Given: _ cb _ ca _ bacb _ ca _ bac_ d
To fill the series we have to divide the series→_ cb _ / ca _ b / acb _ / ca _ b / ac_ d Let's check each option – First
Question : Directions: In a certain code language, EU324 is written as LN361, and HR529 is written as OK576. How will GS625 be written in that language?
Option 1: LM756
Option 2: LN676
Option 3: MN756
Option 4: NL676
Correct Answer: NL676
Solution : Given: EU324 is written as LN361 and HR529 is written as OK576.
For alphabets add 7 to the place value of the first letter and subtract 7 from the place value of the second letter of the word EU324 and for numbers, find the
Question : Directions: Select the option figure in which the given figure is embedded. (rotation is NOT allowed)
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of the question figure with all the option figures, the given question figure is embedded only in the second option figure.
Hence, the second option is
Question : ______ is the change in total utility due to the consumption of one additional unit of a commodity.
Option 1: Product Utility (PU)
Option 2: Revenue Utility (RU)
Option 3: Demand Utility (DU)
Option 4: Marginal Utility (MU)
Correct Answer: Marginal Utility (MU)
Solution : The correct option is Marginal Utility (MU).
The change in total utility due to the consumption of one additional unit of a commodity is called Marginal Utility. It is the additional satisfaction or benefit that a consumer derives from consuming one more
Question : The law of demand is based on:
Option 1: Manufacturer's preference
Option 2: Seller's preference
Option 3: Supplier's preference
Option 4: Consumer's preference
Correct Answer: Consumer's preference
Solution : The correct answer is Consumer's preference.
The law of demand is a fundamental principle of economics that states that at a higher price, consumers will demand a lower quantity of goods, specifically how consumers make choices regarding the quantity of goods and services
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