Teachoo MCQ Test

Short Quiz

Preparing for CBSE

Chapter 6 Class 7 - Number Play - Ganita Prakash | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 480
Question 1 of 5
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Question 1 of 5
In the displayed magic square, what are the hidden top-right and centre entries?
Magic-square questionA 3 by 3 magic square in which every row, column and diagonal has the same sum.81?3?7492
Question marks hide only the entries required by the problem.
Select one option. Answers are shown after the test.
Question 2 of 5
Every entry of a magic square with magic sum 15 is doubled. What is the new magic sum?
Doubled magic squareA 3 by 3 magic square in which every row, column and diagonal has the same sum.16212610148184
Question marks hide only the entries required by the problem.
Select one option. Answers are shown after the test.
Question 3 of 5
A six-person call sequence ends with 6. What is the correct diagnosis?
Select one option. Answers are shown after the test.
Question 4 of 5
What is the parity of \(1+2+\cdots+75\)?
Select one option. Answers are shown after the test.
Question 5 of 5
Fifty loose sheets each contain one odd-numbered page and one even-numbered page. What does parity alone say about a claimed total of 6000?
Select one option. Answers are shown after the test.