Teachoo MCQ Test

Short Quiz

Preparing for CBSE

Chapter 6 Class 8 - Algebra Play (Ganita Prakash II) | 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 a three-row number pyramid, the left bottom number is increased by 3 and the right bottom number is decreased by 3. The middle bottom number is unchanged. What happens to the top?
Select one option. Answers are shown after the test.
Question 2 of 5
Which number cannot be the sum of a complete \(2\times2\) calendar grid?
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Question 3 of 5
The bottom row of a three-row pyramid is \(n-1,n,n+1\). Which expression equals the top?
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Question 4 of 5
If the bottom row of a four-row number pyramid is \(a,b,c,d\), which expression gives the top?
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Question 5 of 5
A trick starts with \(x\): multiply by 4, add \(k\), divide by 4, and subtract \(x\). If the trick must always end at 6, what is \(k\)?
Select one option. Answers are shown after the test.