Teachoo MCQ Test

Assertion Reasoning Quiz

Preparing for CBSE

Chapter 3 Class 7 - Finding Common Ground (Ganita Prakash II) | 6 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 576
Question 1 of 6
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Question 1 of 6
Assertion (A): \(2^3\times3^2\) is a factor of \(2^5\times3^2\times5\).
Reason (R): A factor may use a greater exponent of a prime than the number contains.
Select one option. Answers are shown after the test.
Question 2 of 6
Assertion (A): \(HCF(28,42)=7\).
Reason (R): Both 28 and 42 are divisible by 14.
Select one option. Answers are shown after the test.
Question 3 of 6
Assertion (A): If two numbers have HCF 10 and LCM 360, their product is 3600.
Reason (R): For two positive integers, the product equals \(HCF\times LCM\), so \(10\times360=3600\).
Select one option. Answers are shown after the test.
Question 4 of 6
Assertion (A): Groups of 96 science students, 120 mathematics students and 168 English students can each be split into equal teams of maximum size 24, without mixing subjects.
Reason (R): \(96=2^5\times3\), \(120=2^3\times3\times5\), and \(168=2^3\times3\times7\), so the HCF is \(2^3\times3=24\).
Select one option. Answers are shown after the test.
Question 5 of 6
Assertion (A): The HCF of any two even numbers is always 2.
Reason (R): Every pair of even numbers has 2 as a common factor.
Select one option. Answers are shown after the test.
Question 6 of 6
Assertion (A): Any two consecutive odd numbers have HCF 1.
Reason (R): \(LCM(8,9)=72\).
Select one option. Answers are shown after the test.