Teachoo MCQ Test

Short quiz

Chapter 3 Class 6 - Number Play (Ganita Prakash) | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 408
Question 1 of 5
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Question 1 of 5
You are designing a 5 -digit product ID with a "checksum" (digit sum) of 4 . To make the ID number as large as possible for easier sorting, what should the ID be?
Select one option. Answers are shown after the test.
Question 2 of 5
Assertion (A): A company's annual revenue, a 5 -digit figure, when added to next year's 5 -digit revenue, will sometimes result in a 6 digit total.
Reason (R): The sum will exceed 5 digits and become a 6 -digit number if the combined revenue is ₹1,00,000 or more.
Select one option. Answers are shown after the test.
Question 3 of 5
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?$$ \begin{array}{|c|c|c|} \hline 16200 & 39344 & 29765 \\ \hline 23609 & 62871 & 45306 \\ \hline 19381 & 50319 & 38408 \\ \hline \end{array} $$
Select one option. Answers are shown after the test.
Question 4 of 5
Which of the following is the LARGEST 5-digit palindromic number that can be formed using ONLY the digits 1, 2, and 3, ensuring that all three digits are used at least once?
Select one option. Answers are shown after the test.
Question 5 of 5
Five children stand in a line. Their heights (in cm) from left to right are: 120, 130, 140, 150, 160. If each child calls out the number of taller neighbors they have standing directly next to them, what sequence of numbers will they say?
Select one option. Answers are shown after the test.