NCERT Solutions for Class 5 Mathematics Chapter 12 Racing Seconds
NCERT Solutions for Class 5 Mathematics Chapter 12 Racing Seconds
NCERT Solutions for class 5 Mathematics Chapter Animal Jumps
This worksheet provides complete and accurate NCERT Solutions for Class 5 Mathematics Chapter Animal Jumps. This chapter helps students understand factors, multiples, common factors, and common multiples through number patterns, arrays, and jump-based activities. It is important because it builds strong number sense and helps children apply multiplication and division concepts in practical situations. The worksheet follows the NCERT chapter structure carefully and supports clear understanding for school learning and revision.
Chapter summary: stories, poems & themes
Animal Jumps is an activity-based mathematics chapter focused on patterns formed through jumps on number lines. Students explore how animals such as rabbits, frogs, spiders, and grasshoppers jump in fixed steps to discover multiples and common multiples. The chapter also uses arrays to explain factors of numbers. Through these interactive examples, students learn to identify prime numbers, compare number relationships, and understand divisibility in a visual and engaging way.
What this NCERT chapter covers?
• Understanding factors through arrays
• Learning multiples and common multiples using jump patterns
• Identifying common factors between numbers
• Recognising prime numbers through factor patterns
• Using number lines for observation and comparison
• Applying divisibility rules in practical exercises
How to use these NCERT solutions?
Students should first try solving each question on their own before checking the answers in this worksheet. Parents and teachers can use these NCERT Solutions to guide children step by step and explain mistakes clearly. The answers follow the exact NCERT order and structure, making revision simple and organised. This helps children strengthen understanding and prepare confidently for classwork and assessments.
Student tips & learning tricks
• Draw arrays carefully to find all possible factors of a number
• Use skip counting on number lines to identify common multiples
• Remember that 1 and the number itself are always factors
• Check whether a number divides exactly before calling it a factor
• For prime numbers, test if only two factors are possible: 1 and itself
• Be careful not to confuse factors with multiples
Why NCERT solutions are important?
NCERT Solutions are important because they match the textbook exactly and help students build strong mathematical foundations. They explain concepts in the same sequence as taught in school, making learning easier and less confusing. These solutions improve confidence, accuracy, and readiness for tests by giving students reliable chapter-wise practice.
Complete answer key – NCERT solutions
Let us do
1. Student-generated activity based on finding first five common multiples for each pair:
(a) 2 and 3: 6, 12, 18, 24, 30
(b) 5 and 8: 40, 80, 120, 160, 200
(c) 2 and 4: 4, 8, 12, 16, 20
(d) 3 and 9: 9, 18, 27, 36, 45
(e) 5 and 10: 10, 20, 30, 40, 50
(f) 9 and 12: 36, 72, 108, 144, 180
(g) 8 and 12: 24, 48, 72, 96, 120
(h) 6 and 8: 24, 48, 72, 96, 120
(i) 6 and 9: 18, 36, 54, 72, 90
2. Both Robby and Deeku will reach the food if the food is placed on a common multiple of 4 and 6. Robby reaches first if the food is on 12 because he takes smaller jumps more frequently; exact answer depends on food position. Student explanation required.
3. If Mowgli jumps by 2 steps starting from 0, he will visit friends standing on even-numbered positions only. Student-generated activity.
4. Common factors of 24 and 36:
(a) Yes. 2 is a common factor.
(b) Yes. 3 is a common factor.
(c) Yes. 4 is a common factor.
(d) Other jumps: 1, 6, 12
(e) Common factors: 1, 2, 3, 4, 6, 12
(f) Yes, jumping by 1 step reaches both.
5. Common factors of 12 and 13: 1
6. Numbers that can be reached by jumps of 4 steps: 16, 36, 48
4 is the common factor of the numbers 16, 36, 48.
7. Common factors:
(a) 12 and 16: 1, 2, 4
(b) 8 and 12: 1, 2, 4
(c) 4 and 16: 1, 2, 4
(d) 2 and 9: 1
(e) 3 and 5: 1
(f) 12 and 15: 1, 3
(g) 20 and 5: 1, 5
(h) 9 and 21: 1, 3
(i) 6 and 27: 1, 3
8. True or false:
(a) False
(b) False
(c) True
(d) True
(e) True
(f) True
9. Sher Khan and Bagheera will hunt together on every 15th day: 15th, 30th, 45th, 60th day and so on.
10.
(a) Possible jump lengths to reach 30 but avoid 25: 2, 3, 5, 6, 10, 15
(b) Common jump lengths to meet both 21 and 35: 1, 7
11. Sorting numbers:
(a) Divisible by 2 only: 84, 22, 66, 56, 38, 78, 62
(b) Divisible by 5 only: 45, 25, 95, 75, 55
(c) Divisible by 10 only: None
(d) Divisible by 2, 5, and 10: 90, 30, 40
Strengthen your child’s maths learning with chapter-wise NCERT Solutions for Class 5 Mathematics and build confidence.