Teachoo MCQ Test

Picture-based MCQ Quiz

Preparing for CBSE

Chapter 8 - Predicting What Comes Next: Exploring Sequences & Progress | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 456
Question 1 of 5
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Question 1 of 5
Observe the growing pattern of squares. Stage 1 has a single square (1 square). Stage 2 adds 4 squares to the corners (5 squares). Stage 3 adds 4 more squares (9 squares). How many squares will be in Stage 20?
Stage 1Stage 2Stage 3
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Question 2 of 5
A Sierpiński square carpet begins with \(1\) red square at Stage \(0\). At each stage, every red square is replaced by \(8\) smaller red squares. How many red squares are present at Stage \(4\)?
Early stages of a Sierpiński square carpetStage zero is a solid square. Stage one has the centre ninth removed. Stage two repeats the removal in each retained square.Stage 0Stage 1Stage 2
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Question 3 of 5
In the growing pattern below, Stage \(1\) contains \(1\) square and each new stage adds \(4\) corner squares. How many small squares are present at Stage \(12\)?
Growing square patternStages one to four contain one, five, nine and thirteen small squares.Stage 1Stage 2Stage 3Stage 4
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Question 4 of 5
Marbles are arranged in \(25\) rows: \(1\) marble in the first row, \(2\) in the second, and so on. How many marbles are used altogether?
Triangular rows of marblesA small triangular dot pattern illustrating one, two, three, four and five marbles in consecutive rows.
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Question 5 of 5
The plotted points below represent the first few terms of a sequence, where \(x\) is the term number and \(y\) is the term value. What is the value when \(x=15\)?
Points of an arithmetic progression on a straight linePoints one seven, two ten, three thirteen, four sixteen and five nineteen lie on a straight line.xy(1, 7)(2, 10)(3, 13)(4, 16)(5, 19)
Select one option. Answers are shown after the test.