Teachoo MCQ Test

Assertion Reasoning Quiz

Preparing for CBSE

Chapter 6 Class 8 - We Distribute yet things Multiply (Ganita Prakash) | 7 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 672
Question 1 of 7
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Question 1 of 7
Assertion (A): The square of every even integer is divisible by 4.
Reason (R): The product of two consecutive integers is even.
Select one option. Answers are shown after the test.
Question 2 of 7
Assertion (A): For consecutive integers \(n-1,n,n+1\), \(n^2-(n-1)(n+1)=1\).
Reason (R): \((n-1)(n+1)=n^2-1\).
Select one option. Answers are shown after the test.
Question 3 of 7
Assertion (A): \((a-b)(a^2+ab+b^2)=a^3-b^3\).
Reason (R): Expanding the left side leaves \(a^3+b^3\).
Select one option. Answers are shown after the test.
Question 4 of 7
Assertion (A): \((p+q)(p-q)=p^2+q^2\).
Reason (R): \((p+q)(p-q)=p^2-q^2\).
Select one option. Answers are shown after the test.
Question 5 of 7
Assertion (A): The square of every odd integer is 1 more than a multiple of 8.
Reason (R): Every odd integer can be written as \(2k\).
Select one option. Answers are shown after the test.
Question 6 of 7
Assertion (A): \((2x+3)^2-(2x-3)^2=24x\).
Reason (R): Using the difference-of-squares identity gives \(12x\).
Select one option. Answers are shown after the test.
Question 7 of 7
Assertion (A): \((x+5)^2=x^2+25\).
Reason (R): The expansion also requires the middle term \(10x\).
Select one option. Answers are shown after the test.