Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. Find the coefficient of x^4 in the expansion of (x + 3)^6.
A.
81
B.
162
C.
243
D.
729
Show solution
Solution
The coefficient of x^4 is C(6,4) * (3)^2 = 15 * 9 = 135.
Correct Answer:
C
— 243
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Q. Find the coefficient of x^4 in the expansion of (x + 5)^7.
A.
210
B.
1260
C.
1750
D.
2450
Show solution
Solution
The coefficient of x^4 is given by C(7,4) * 5^3 = 35 * 125 = 4375.
Correct Answer:
B
— 1260
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Q. Find the coefficient of x^4 in the expansion of (x - 1)^5.
Show solution
Solution
The coefficient of x^4 is C(5,4) * (-1)^1 = 5 * (-1) = -5.
Correct Answer:
C
— -10
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Q. Find the coefficient of x^4 in the expansion of (x - 5)^6.
A.
150
B.
200
C.
250
D.
300
Show solution
Solution
The coefficient of x^4 is given by C(6,4) * (-5)^2 = 15 * 25 = 375.
Correct Answer:
B
— 200
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Q. Find the coefficient of x^5 in the expansion of (2x - 3)^6. (2022)
A.
-540
B.
540
C.
-720
D.
720
Show solution
Solution
The coefficient of x^5 is C(6,5) * (2)^5 * (-3)^1 = 6 * 32 * (-3) = -576.
Correct Answer:
A
— -540
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Q. Find the coefficient of x^5 in the expansion of (2x - 3)^7. (2023)
A.
168
B.
252
C.
336
D.
504
Show solution
Solution
The coefficient of x^5 is C(7,5) * (2)^5 * (-3)^2 = 21 * 32 * 9 = 6048.
Correct Answer:
B
— 252
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Q. Find the coefficient of x^5 in the expansion of (2x - 3)^8.
A.
-6720
B.
6720
C.
-3360
D.
3360
Show solution
Solution
The coefficient of x^5 is C(8,5) * (2)^5 * (-3)^3 = 56 * 32 * (-27) = -6720.
Correct Answer:
A
— -6720
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Q. Find the coefficient of x^5 in the expansion of (3x + 2)^6.
A.
486
B.
729
C.
729
D.
486
Show solution
Solution
The coefficient of x^5 in (3x + 2)^6 is C(6, 5)(3)^5(2)^1 = 6 * 243 * 2 = 2916.
Correct Answer:
A
— 486
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Q. Find the coefficient of x^5 in the expansion of (x + 1)^7.
Show solution
Solution
The coefficient of x^5 is C(7,5) = 21.
Correct Answer:
C
— 35
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Q. Find the coefficient of x^5 in the expansion of (x + 1)^8.
Show solution
Solution
The coefficient of x^5 is C(8,5) = 56.
Correct Answer:
B
— 70
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Q. Find the coefficient of x^5 in the expansion of (x + 2)^7.
Show solution
Solution
The coefficient of x^5 is C(7,5) * 2^2 = 21 * 4 = 84.
Correct Answer:
C
— 56
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Q. Find the coefficient of x^5 in the expansion of (x + 3)^8.
A.
56
B.
168
C.
336
D.
672
Show solution
Solution
The coefficient of x^5 is C(8,5) * (3)^3 = 56 * 27 = 1512.
Correct Answer:
B
— 168
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Q. Find the coefficient of x^5 in the expansion of (x - 3)^7.
A.
-1890
B.
-2187
C.
-2401
D.
-2430
Show solution
Solution
The coefficient of x^5 is C(7,5) * (-3)^2 = 21 * 9 = -1890.
Correct Answer:
A
— -1890
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Q. Find the coefficient of x^6 in the expansion of (x + 1)^10. (2023)
A.
10
B.
45
C.
120
D.
210
Show solution
Solution
The coefficient of x^6 is given by 10C6 = 210.
Correct Answer:
D
— 210
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Q. Find the condition for the lines represented by the equation 2x^2 + 3xy + y^2 = 0 to be parallel.
A.
D = 0
B.
D > 0
C.
D < 0
D.
D = 1
Show solution
Solution
For the lines to be parallel, the discriminant D must be equal to 0.
Correct Answer:
A
— D = 0
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Q. Find the condition for the lines represented by the equation ax^2 + 2hxy + by^2 = 0 to be parallel.
A.
h^2 = ab
B.
h^2 > ab
C.
h^2 < ab
D.
h^2 = 0
Show solution
Solution
The condition for the lines to be parallel is given by h^2 = ab.
Correct Answer:
A
— h^2 = ab
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Q. Find the condition for the lines represented by the equation ax^2 + 2hxy + by^2 = 0 to be perpendicular.
A.
ab + h^2 = 0
B.
ab - h^2 = 0
C.
a + b = 0
D.
a - b = 0
Show solution
Solution
The condition for the lines to be perpendicular is given by the relation ab + h^2 = 0.
Correct Answer:
A
— ab + h^2 = 0
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Q. Find the conjugate of the complex number z = 2 - 5i.
A.
2 + 5i
B.
2 - 5i
C.
-2 + 5i
D.
-2 - 5i
Show solution
Solution
The conjugate of z = 2 - 5i is z* = 2 + 5i.
Correct Answer:
A
— 2 + 5i
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Q. Find the conjugate of the complex number z = 5 - 6i.
A.
5 + 6i
B.
5 - 6i
C.
-5 + 6i
D.
-5 - 6i
Show solution
Solution
The conjugate of z = 5 - 6i is z̅ = 5 + 6i.
Correct Answer:
A
— 5 + 6i
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Q. Find the constant term in the expansion of (3x - 4/x)^5.
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Solution
The constant term occurs when the power of x is zero. The term is given by 5C2 * (3x)^2 * (-4/x)^3 = 10 * 9 * (-64) = -5760.
Correct Answer:
A
— -64
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Q. Find the constant term in the expansion of (x - 2/x)^6. (2022)
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Solution
The constant term occurs when the power of x is zero. Setting 6 - 2k = 0 gives k = 3. The term is C(6,3)(-2)^3 = -64.
Correct Answer:
A
— -64
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Q. Find the coordinates of the centroid of the triangle with vertices (0, 0), (6, 0), and (0, 8). (2022)
A.
(2, 2)
B.
(2, 3)
C.
(3, 2)
D.
(4, 4)
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Solution
Centroid = ((0+6+0)/3, (0+0+8)/3) = (2, 2).
Correct Answer:
A
— (2, 2)
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Q. Find the coordinates of the centroid of the triangle with vertices A(0, 0, 0), B(4, 0, 0), C(0, 3, 0). (2021)
A.
(4/3, 1, 0)
B.
(2, 1, 0)
C.
(1, 1, 0)
D.
(0, 0, 0)
Show solution
Solution
Centroid G = ((0+4+0)/3, (0+0+3)/3, (0+0+0)/3) = (4/3, 1, 0).
Correct Answer:
B
— (2, 1, 0)
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Q. Find the coordinates of the centroid of the triangle with vertices at (0, 0), (6, 0), and (3, 6).
A.
(3, 2)
B.
(3, 3)
C.
(2, 3)
D.
(0, 0)
Show solution
Solution
Centroid = ((x1+x2+x3)/3, (y1+y2+y3)/3) = (9/3, 6/3) = (3, 2).
Correct Answer:
B
— (3, 3)
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Q. Find the coordinates of the centroid of the triangle with vertices at (0, 0), (6, 0), and (0, 8).
A.
(2, 2)
B.
(2, 3)
C.
(3, 2)
D.
(4, 4)
Show solution
Solution
Centroid = ((0+6+0)/3, (0+0+8)/3) = (2, 2).
Correct Answer:
A
— (2, 2)
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Q. Find the coordinates of the centroid of the triangle with vertices at (1, 2), (3, 4), and (5, 6).
A.
(3, 4)
B.
(2, 3)
C.
(4, 5)
D.
(5, 6)
Show solution
Solution
Centroid = ((1+3+5)/3, (2+4+6)/3) = (3, 4).
Correct Answer:
B
— (2, 3)
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Q. Find the coordinates of the focus of the parabola y^2 = -12x.
A.
(-3, 0)
B.
(-2, 0)
C.
(3, 0)
D.
(2, 0)
Show solution
Solution
The equation y^2 = -12x can be rewritten as (y - 0)^2 = 4p(x - 0) with p = -3, so the focus is at (-3, 0).
Correct Answer:
A
— (-3, 0)
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Q. Find the coordinates of the foot of the perpendicular from the point (1, 2) to the line 2x - 3y + 6 = 0.
A.
(0, 2)
B.
(1, 1)
C.
(2, 0)
D.
(3, -1)
Show solution
Solution
Using the formula for foot of perpendicular, we find the coordinates to be (1, 1).
Correct Answer:
B
— (1, 1)
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Q. Find the coordinates of the foot of the perpendicular from the point (3, 4) to the line 2x + 3y - 6 = 0.
A.
(2, 0)
B.
(1, 1)
C.
(0, 2)
D.
(3, 2)
Show solution
Solution
Using the formula for foot of perpendicular, we find the coordinates to be (3, 2).
Correct Answer:
D
— (3, 2)
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Q. Find the coordinates of the midpoint of the line segment joining A(2, -1, 3) and B(4, 3, 5). (2022)
A.
(3, 1, 4)
B.
(2, 1, 4)
C.
(3, 2, 3)
D.
(4, 2, 4)
Show solution
Solution
Midpoint M = ((2+4)/2, (-1+3)/2, (3+5)/2) = (3, 1, 4).
Correct Answer:
A
— (3, 1, 4)
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