Staff Selection Commission Combined Higher Secondary Level Exam
Question : _________________ refers to the gross market value of all final goods and services produced within the domestic territory of a country during a period of one year.
Option 1: GDP at MP
Option 2: GDP at FC
Option 3: GNP at MP
Option 4: GNP at FC
Correct Answer: GDP at MP
Solution :
Question : If the sum of squares of two real numbers is 12 and the product of the numbers is 4, find the difference between the numbers.
Option 1: 4
Option 2: 8
Option 3: 1
Option 4: 2
Correct Answer: 2
Solution : Given: The sum of squares of two numbers = 12 Product of the numbers = 4 Let the numbers be $a$ and $b$. ⇒ $a^2+b^2=12$ and $ab = 4$ We know, $(a-b)^2=a^2+b^2-2ab$ ⇒ $(a-b)^2=12-2\times4$ ⇒ $(a-b)^2=12-8$ ⇒ $(a-b)^2=4$ ⇒ $a-b=\sqrt4=2$ Hence, the correct answer is
Question : Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph. A. Isabel saw a strange rabbit running through the bushes. B. Following it, she found a door which she opened with the help of keys. C. After that, she felt a strange sensation in her body. D. She thought as if she was in a dream.
Option 1: CDAB
Option 2: DCAB
Option 3: BCDA
Option 4: ABCD
Correct Answer: ABCD
Solution : The correct choice is the fourth option.
A. Isabel saw a strange rabbit running through the bushes. (Introducing the initial action or event) B. Following it, she found a door, which she opened with the help of keys. (Continuation of the action initiated
Question : From May 2017, the Real Estate Act has come into effect. Under the Act, the Regulatory Authorities are required to dispose of complaints in how many days?
Option 1: 60
Option 2: 30
Option 3: 45
Option 4: 90
Correct Answer: 60
Solution : The correct answer is 60.
The Real Estate Regulatory Authority (RERA) is a governing organization that serves as a quick dispute resolution mechanism and is established by the Real Estate Act of 2017 in each state to regulate the real estate industry. Under this Act
Question : Directions: In a certain code language, ANSWER is coded as APPWGO. What is the code for DEFINE in that code language?
Option 1: DGCIPB
Option 2: DGCJPD
Option 3: DGCIQD
Option 4: DGCIBB
Correct Answer: DGCIPB
Solution : Given: ANSWER is coded as APPWGO
Follow the pattern to obtain the code – Thus, ANSWER is coded as APPWGO. Similarly, follow the same pattern for DEFINE –
So, DEFINE is coded as DGCIPB. Hence, the first option is correct.
Question : If $A+\frac{1}{A}=-1$, then find the value of $\frac{{A}^6+{A}^3-1}{{~A}^9+{A}^3-1}$.
Option 1: 0
Option 2: –1
Option 3: 2
Option 4: 1
Correct Answer: 1
Solution : $A+\frac{1}{A}=-1$ ⇒ $A^2+A+1=0$ Now, $A^3-1^3 = (A-1) (A^2+A+1)$ ⇒$A^3-1 = (A-1)\times 0$ ⇒$A^3-1 =0$ ⇒$A^3=1$ So, $\frac{{A}^6+{A}^3-1}{{~A}^9+{A}^3-1}$ $=\frac{{(A^3)}^2+{A}^3-1}{{(A^3)}^3+{A}^3-1}$ $=\frac{1^2+1-1}{1^3+1-1}$ $= 1$ Hence, the correct answer is 1.
Question : Which district of Madhya Pradesh is a leading producer of copper?
Option 1: Balaghat
Option 2: Jabalpur
Option 3: Bhopal
Option 4: Gwalior
Correct Answer: Balaghat
Solution : The correct option is Balaghat.
The Balaghat district in Madhya Pradesh is a leading producer of copper in India. It is home to the Malanjkhand copper deposit, which is one of the largest copper deposits in the country. The Malanjkhand Copper Project, operated by
Question : A person lent Rs. 10,000 to B for 3 years and Rs. 6,000 to C for 4 years on Simple interest at the same rate of interest and received Rs. 5,400 in all from both of them as interest. What is the rate of interest (in percent)?
Option 1: 10
Option 2: 12.5
Option 3: 15
Option 4: 20
Correct Answer: 10
Solution : Let the rate be $r$. We know, Simple interest = $\frac{\text{Principal × Rate × Time}}{100}$ So, interest from B = $\frac{10000×3×r}{100}=300r$ Also, interest from C = $\frac{6000×4×r}{100}=240r$ According to the question, ⇒ $300r+240r = 5400$ ⇒ $540r = 5400$ $\therefore r =10\%$ Hence, the correct
Question : Simplify the given expression. $\frac{x^3+y^3+z^3-3 x y z}{(x-y)^2+(y-z)^2+(z-x)^2}$
Option 1: $\frac{1}{3}(x+y+z)$
Option 2: $(x+y+z)$
Option 3: $\frac{1}{4}(x+y+z)$
Option 4: $\frac{1}{2}(x+y+z)$
Correct Answer: $\frac{1}{2}(x+y+z)$
Solution : By polynomial identity $x^3+y^3+z^3−3xyz = (x+y+z)(x^2+y^2+z^2−xy−yz−zx)$ = $\frac{1}{2}(x+y+z)(2x^2+2y^2+2z^2−2xy−2yz−2zx)$ = $\frac{1}{2}(x+y+z)(x^2−2xy+y^2+y^2−2yz+z^2+z^2−2xz+x^2)$ = $\frac{1}{2}[(x+y+z)(x−y)^2+(y−z)^2+(z−x)^2]$ $\therefore \frac{x^3+y^3+z^3-3 x y z}{(x-y)^2+(y-z)^2+(z-x)^2}$ = $\frac{\frac{1}{2}[(x+y+z)(x−y)^2+(y−z)^2+(z−x)^2]}{(x-y)^2+(y-z)^2+(z-x)^2}$ = $\frac{1}{2}(x+y+z)$ Hence, the correct answer is $\frac{1}{2}(x+y+z)$.
Question : Directions: In the following question, some parts of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select 'No Error'.
Acceptance is not about allowing everything to occur or to go on, (1) / it is neither related to passivity and weakness, (2) / nor is it about confirmation or mediocrity. (3) / No Error (4)
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 3
Solution : The error lies in the third part of the sentence because 'is it' should be replaced with 'it is' in order to follow parallelism in case of correlative conjunction neither......nor.
Therefore, the correct sentence should be "Acceptance is not about allowing everything to occur or
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