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Question : If the sum of the roots of a quadratic equation is 1 and the product of the roots is –20, find the quadratic equation.
Option 1: $x^{2}–x–20=0$
Option 2: $x^{2}+x+20=0$
Option 3: $x^{2}+x–20=0$
Option 4: $x^{2}–x+20=0$
Correct Answer: $x^{2}–x–20=0$
Solution : Given: The sum of the roots = 1 The product of the roots is = –20 We know that quadratic equation: $x^{2}–(\text{sum of the root})x+(\text{product of the root})=0$ ⇒ $x^{2}–(1)x+(–20)=0$ ⇒ $x^{2}–x–20=0$ Hence, the correct answer is $x^{2}–x–20=0$.
Question : Identify the segment that contains a grammatical error. If there is no error, select 'No Error'. George handing the / hairpin to Ron, / a moment later.
Option 1: George handing the
Option 2: hairpin to Ron,
Option 3: a moment later.
Option 4: No Error
Correct Answer: George handing the
Solution : The first option is correct.
Question : 10 consecutive numbers are given. If the average of the two numbers given in the middle is 13.5, then what is the sum of the first 6 numbers?
Option 1: 58
Option 2: 55
Option 3: 67
Option 4: 69
Correct Answer: 69
Solution : Given that the average of two middle numbers in a list of 10 consecutive numbers is 13.5. Let the smaller one be $x$. Therefore, the next number is $x+1$. The average of these two numbers is given by: $⇒\frac{x + (x+1)}{2} = 13.5$ $\therefore x
Question : Which one of the following languages is not specified in the Eighth Schedule of the Indian Constitution?
Option 1: Urdu
Option 2: English
Option 3: Sindhi
Option 4: Sanskrit
Correct Answer: English
Solution : The correct answer is English.
The Eighth Schedule of the Indian constitution includes India's official languages, as designated by the government for use in state legislatures across the country. Unlike ancient languages, there are no set criteria for the selection of official languages. Currently,
Question : Select the most appropriate option that can substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution’. The teacher asked the students to be quite during the exam.
Option 1: No substitution
Option 2: be quiet
Option 3: have quiet
Option 4: been quiet
Correct Answer: be quiet
Solution : The correct answer is the second option.
The original sentence has a spelling error; "quite" should be "quiet". "Quiet" means to make little or no noise, which is the intended meaning in this context. So, "be quiet" is the correct substitution that rectifies the
Question : Directions: In the following question you have to identify the correct response from the given premises stated according to the following symbols. If + means ×, – means +, × means ÷, ÷ means –, then what is the value of 50 + 10 – 50 × 10 ÷ 125 = ?
Option 1: 380
Option 2: 56
Option 3: 180
Option 4: –125
Correct Answer: 380
Solution : Given: + means ×, – means +, × means ÷, ÷ means – 50 + 10 – 50 × 10 ÷ 125 = ?
Now, replace the given symbols – = 50 × 10 + 50 ÷ 10 – 125 = 50 × 10 +
Question : Two circles of radius 2.4 cm and 4 cm, respectively, have a common tangent. The distance between the centres of the two circles is 6.5 cm. If the common tangent does not intersect the line joining the centres, then find the length of a common tangent to the circles.
Option 1: 6.0 cm
Option 2: 6.2 cm
Option 3: 6.1 cm
Option 4: 6.3 cm
Correct Answer: 6.3 cm
Solution : Given: $r{_1}=2.4$ cm, $r{_2}=4$ cm, $d=6.5$ cm Length of the common tangent = $\sqrt{d^2-(r{_1}-r{_2})^2}$ = $\sqrt{6.5^2-(2.4-4)^2}$ = $\sqrt{42.25-(1.6)^2}$ = $\sqrt{42.25-2.56}$ = $\sqrt{39.96}$ = $6.3$ cm Hence, the correct answer is 6.3 cm.
Question : If the difference between the average of $x, y$ and $y, z$ is 12, then the difference between $x$ and $z$ is:
Option 1: 24
Option 2: 48
Option 3: 12
Option 4: 6
Correct Answer: 24
Solution : Given: The difference between the average of $x$, $y$ and $y$, $z$ is 12. According to the question, $\frac{x+y}{2}–\frac{y+z}{2}=12$ ⇒ $\frac{x+y–y–z}{2}=12$ ⇒ $\frac{x–z}{2}=12$ ⇒ $x–z=24$ Hence, the correct answer is 24.
Question : Who choreographed the Bollywood song "Mohe Rang Do Laal" from Bajirao Mastani?
Option 1: Saroj Khan
Option 2: Farah Khan
Option 3: Ganesh Acharya
Option 4: Birju Maharaj
Correct Answer: Birju Maharaj
Solution : The correct option is Pandit Birju Maharaj.
The Bollywood song "Mohe Rang Do Laal" from the movie "Bajirao Mastani" was choreographed by Pandit Birju Maharaj. He is a renowned Indian classical dancer and choreographer, and he worked on this song to bring the
Question : Directions: Improve the bracketed part of each sentence.
Shreya is a winner, and there (is no point of denying that) fact.
(1) no denial in the
(2) no way we could deny
(3) no denying the
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (3)
Solution : The sentence can be improved using the third option.
The phrase "There is no denying the fact" is the most appropriate choice here. It's a common expression used to assert that something is unquestionably true or evident. In the sentence, it conveys that there is
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