10 Question MCQ (including Assertion)

Question 1 of 10

For five children of different heights, can every child say “1”?

A Yes, if they stand in increasing order of height B Yes, if the tallest child stands in the middle C No, because the tallest child has no taller neighbour D No, because end children can never say 1

Select one option. Answers are shown after the test.

Question 2 of 10

In the grid below, there is currently only ONE supercell. According to the textbook puzzle, swapping two specific digits in one of the numbers will instantly increase the total number of supercells in the grid to 4. Which number must be altered?$$ \begin{array}{|c|c|c|} \hline 16200 & 39344 & 29765 \\ \hline 23609 & 62871 & 45306 \\ \hline 19381 & 50319 & 38408 \\ \hline \end{array} $$

A 29765 B 62871 C 50319 D 39344

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Question 3 of 10

Evaluate the statement: "Subtracting a 5-digit number from another 5-digit number always yields a 5-digit number."

A Always True B Only Sometimes True C Never True D True only if no borrowing is needed

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Question 4 of 10

Five children of different heights stand in a line. What is the maximum number of children who can say “2”?

A 1 B 2 C 3 D 5

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Question 5 of 10

Why can a child standing at an end of the line never say “2”?

A Because the end child must be the tallest B Because an end child has only one immediate neighbour C Because an end child has no neighbours D Because the number 2 is used only by the shortest child

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Question 6 of 10

From 1 to 1000, how many times is the digit 7 written?

A 100 B 200 C 300 D 301

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Question 7 of 10

In Game #1, starting at 0, players take turns adding either 1, 2, or 3 to the running total. The first person to say 21 wins. What is the fundamental requirement to guarantee a win in this game?

A Let the opponent go first. B Ensure you are the First Player to move. C Always add 3 on your turn. D Always match the opponent's number.

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Question 8 of 10

How many 5-digit numbers are there?

A 9,000 B 90,000 C 99,999 D 100,000

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Question 9 of 10

A 5-digit palindrome is odd. Its tens digit is double its units digit, and its hundreds digit is double its tens digit. Which number is it?

A 12,421 B 21,412 C 24,842 D 13,531

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Question 10 of 10

In the row 6828, 670, 9435, 3780, 3708, 7308, 8000, 5583, 52, which numbers are supercells?

A 670, 3780, 5583 B 6828, 9435, 8000 C 9435, 7308, 8000, 52 D 6828, 3708, 7308

Select one option. Answers are shown after the test.

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10 Question MCQ (including Assertion)