Staff Selection Commission Combined Graduate Level Exam
Question : There are main types of cell division.
Option 1: 4
Option 2: 2
Option 3: 3
Option 4: 5
Correct Answer: 2
Solution : The correct option is 2.
There are two primary types of cell division. Mitosis, prevalent in eukaryotic cells with a nucleus, leads to two identical daughter cells. In multicellular organisms, it is vital to growth, development, and tissue repair.
Meiosis, on the other hand,
Question : If $x+\frac{1}{2 x}=3$, then evaluate $8 x^3+\frac{1}{x^2}$.
Option 1: 212
Option 2: 216
Option 3: 180
Option 4: 196
Correct Answer: 180
Solution : $x+\frac{1}{2x}=3$ On multiplying 2 on both sides, $⇒2x+\frac{1}{x}=6$ Now cubing both sides, we get, $⇒(2x+\frac{1}{x})^{3}=6^{3}$ $⇒8x^{3}+\frac{1}{x^3}+3(4x^2)(\frac{1}{x})+3(2x)(\frac{1}{x^2})=216$ $⇒8x^{3}+\frac{1}{x^3}+12x+\frac{6}{x}=216$ $⇒8x^{3}+\frac{1}{x^3} = 216-6(2x+\frac{1}{x})$ $⇒8x^{3}+\frac{1}{x^3} = 216-6(6)$ $⇒8x^{3}+\frac{1}{x^3} = 216-36$ $⇒8x^{3}+\frac{1}{x^3} = 180$ Hence, the correct answer is 180.
Question : The price of a variety of a commodity is INR 7 per kg and that of another is INR 12 per kg. Find the ratio in which two varieties should be mixed so that the price of the mixture is INR 10 per kg.
Option 1: 3 : 4
Option 2: 2 : 3
Option 3: 4 : 5
Option 4: 2 : 5
Correct Answer: 2 : 3
Solution : Given: The price of a variety of a commodity is INR 7 per kg and that of another is INR 12 per kg. The ratio in which two varieties should be mixed so that the price of the mixture is INR 10 per
Question : $\triangle PQR$ is an isosceles triangle and $PQ=PR=2a$ unit, $QR=a$ unit. Draw $PX \perp QR$, and find the length of $PX$.
Option 1: $\sqrt{5} a$
Option 2: $\frac{\sqrt{5} a}{2}$
Option 3: $\frac{\sqrt{10} a}{2}$
Option 4: $\frac{\sqrt{15} a}{2}$
Correct Answer: $\frac{\sqrt{15} a}{2}$
Solution : Given: $PQ = PR = 2a$ and $QR=a$ ⇒ $PX = \sqrt{(PQ^2 - (\frac{QR}{2})^2)}$ = $\sqrt{(4a^2 - \frac{a^2}{4})}$ = $\frac{\sqrt{15}a}{2}$ Hence, the correct answer is $\frac{\sqrt{15}a}{2}$.
Question :
Uric acid is the chief nitrogenous wastes in:
Option 1:
Frogs
Option 2:
Birds
Option 3: Fishes
Option 4: Mankind
Correct Answer:
Solution : The correct option is - Birds
The main nitrogenous waste produced by birds, reptiles, and insects is uric acid, while in mammals and frogs nitrogenous waste is in form of urea. Ammonia is excreted by fish.
Question : Select the correct indirect form of the given sentence. He exclaimed, “What a fine piece of architecture it is!”
Option 1: He exclaimed that what a fine piece of architecture it was.
Option 2: He exclaimed what a fine piece of architecture is it.
Option 3: He exclaimed was it a fine piece of architecture.
Option 4: He exclaimed that it was a fine piece of architecture.
Correct Answer: He exclaimed that it was a fine piece of architecture.
Solution : The correct choice is the fourth option.
The indirect form, also known as reported or indirect speech, involves reporting what someone else has said without quoting their exact words.
The steps of conversion are as follows:
Question : Directions: Select the option that represents the correct order of the given words as they would appear in an English dictionary. 1. Absurdly 2. Abstriction 3. Abstract 4. Absolutely 5. Abstain 6. Absorber
Option 1: 6, 4, 3, 5, 2, 1
Option 2: 4, 6, 3, 5, 1, 2
Option 3: 6, 4, 5, 3, 2, 1
Option 4: 4, 6, 5, 3, 2, 1
Correct Answer: 4, 6, 5, 3, 2, 1
Solution : Given: 1. Absurdly 2. Abstriction 3. Abstract 4. Absolutely 5. Abstain 6. Absorber
Step 1: Compare the first letter of each word. Since all the words start with the same letter A, move on to the next letter. Step
Question : The folk dance of Kummi is performed by the women of which Indian state?
Option 1: Rajasthan
Option 2: Madhya Pradesh
Option 3: Tamil Nadu
Option 4: Jharkhand
Correct Answer: Tamil Nadu
Solution : The correct option is Tamil Nadu.
Indian ladies from the Tamil Nadu state are the performers of the Kummi folk dance. In Tamil Nadu, kummi is a popular traditional dance that is frequently performed at weddings, festivals, and other social gatherings. Participants clap and
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
The two first chapters of the book (1) / are very interesting, (2) / the remaining ones are boring. (3) / No Error (4)
Option 1: 1
Option 4: 4
Correct Answer: 1
Solution : The error lies in the first part of the sentence.
The appropriate usage is "The first two chapters of the book". This is because ordinal numbers, such as "first" denote the order or position in a series, while cardinal numbers, such as "two", indicate quantity.
Question : A motion that seeks to reduce the amount of demand represented by the government to Re. 1 is known as:
Option 1: disapproval of policy cut
Option 2: token cut
Option 3: economy cut
Option 4: vote on account
Correct Answer: disapproval of policy cut
Solution : The correct answer is disapproval of policy cuts.
A rejection of a policy-cut motion tries to lower the amount of demand represented by the government to Re. 1. A policy-cut disapproval motion is presented in a legislature to express unhappiness with
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