Teachoo MCQ Test

Picture-based MCQ 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
Why can the displayed \(3 \times3\) sum grid not use the numbers 1 to 9 once each?
Impossible sum gridA 3 by 3 grid must use 1 to 9 once, but a row total is 5 and a column total is 26.5211991126
Before filling cells, check the smallest and largest possible three-number sums.
Select one option. Answers are shown after the test.
Question 2 of 5
Find the missing Virahanka number.
Virahanka sequence questionSuccessive Virahanka terms are shown in boxes with one required value.13213455?
Each new term comes from the two boxes immediately before it.
Select one option. Answers are shown after the test.
Question 3 of 5
A \(3 imes3\) magic square has centre 25 and uses nine consecutive numbers. What is its magic sum?
Magic square centred at 25A 3 by 3 magic square in which every row, column and diagonal has the same sum.282126232527242922
Question marks hide only the entries required by the problem.
Select one option. Answers are shown after the test.
Question 4 of 5
The numbers 2 to 10 form the displayed magic square. Find the sum of the hidden centre and bottom-middle entries.
Magic-square questionA 3 by 3 magic square in which every row, column and diagonal has the same sum.9274?85?3
Question marks hide only the entries required by the problem.
Select one option. Answers are shown after the test.
Question 5 of 5
Find the missing entry in the first row.
Row-and-column sum gridA number grid with circled sums for each row and column.47?61239816920131715
Use the circled totals attached to the relevant row or column.
Select one option. Answers are shown after the test.