Teachoo MCQ Test

Short Quiz

Preparing for CBSE

Chapter 5 Class 11 Linear Inequalities | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 432
Question 1 of 5
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Question 1 of 5
Assertion:The graph represents the solution of \(-12x>30\).
Reason:Dividing an inequality by a negative number reverses its sign, while a strict inequality remains strict.
−5/2
Select one option. Answers are shown after the test.
Question 2 of 5
Assertion:The graph represents the solution \(x<3\).
Reason:An open circle excludes the boundary value, and a ray extending left represents values smaller than the boundary.
3
Select one option. Answers are shown after the test.
Question 3 of 5
Assertion:A student scoring \(70\) and \(75\) in the first two tests needs \(x\ge35\) in the third test to have an average of at least \(60\).
Reason:The phrase “at least \(60\)” is translated as an average strictly greater than \(60\).
Select one option. Answers are shown after the test.
Question 4 of 5
Assertion:The graph represents the solution of \(4x+3<6x+7\).
Reason:Solving \(4x+3<6x+7\) gives \(x>-2\), and the point \(-2\) must therefore be shown by an open circle.
−2
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Question 5 of 5
To earn Grade A, Sunita needs an average of at least \(90\) in five examinations. Her first four marks are \(87,92,94,95\). Let the possible fifth-exam marks \(x\). What is the minimum value of \(x\)?
Select one option. Answers are shown after the test.