## NCERT Solutions for Class 6 Exercise 3.7 Maths FREE PDF Download

## FAQs on NCERT Solutions for Class 6 Maths Chapter 3 Exercise 3.7 Number Play

1. What is a clock number?

A clock number is a number system based on the 12-hour or 24-hour clock. The numbers are cyclic, meaning after reaching the highest number (12 or 24), they reset to 1.

2. How does the 12-hour clock system work?

In the 12-hour clock system, time is represented in hours from 1 to 12, and after 12, it resets back to 1. This cycle repeats twice in a day—once for AM (midnight to noon) and once for PM (noon to midnight).

3. How do you find the sum of clock numbers?

To find the sum of two clock numbers, you add them together and subtract 12 if the result exceeds 12, bringing the number back within the 1-12 range.

4. What is a calendar number?

A calendar number refers to days, months, or years in a calendar. For example, a month has 30 or 31 days (except February), and a year typically has 365 days.

5. How can you solve problems involving the number of days between two dates?

To solve problems involving the number of days between two dates, count the days in each month between the two dates, accounting for whether the year is a leap year (February has 29 days) or a common year (February has 28 days).

6. What is meant by the term "number pattern" in Chapter 3: Number Play?

A number pattern is a sequence of numbers that follow a specific rule or formula. For example, 2, 4, 6, 8 is a pattern where each number increases by 2.

7. How are odd and even numbers explained in NCERT Solutions for Class 6 Maths, Chapter 3: Number Play?

Even numbers are divisible by 2, while odd numbers are not divisible by 2. Examples include 2, 4, 6 (even) and 1, 3, 5 (odd).

8. What are prime numbers in Chapter 3: Number Play?

Prime numbers are numbers that have exactly two factors – 1 and the number itself. Examples include 2, 3, 5, and 7.

9. What are composite numbers as explained in NCERT Solutions for Class 6 Maths, Chapter 3: Number Play?

Composite numbers have more than two factors. For example, 4, 6, 8, and 9 are composite numbers because they can be divided by numbers other than 1 and themselves.

10. What is the difference between a factor and a multiple in Chapter 3: Number Play?

A factor divides a number exactly without leaving a remainder, while a multiple is the product of a number and any other whole number.