Question 1. What is the sum of any two a even numbers b odd numbers? Solution: a The sum of any two even numbers is even. Question 2. Which of the following numbers is divisible by 3?
Hence, is also divisible by 3. Hence, is not divisible by 3. Question 3. Question 4. Find the HCF of 5 and 7. Solution: Given numbers are 5 and 7. We observe that 5 and 7 are co-prime numbers. Hence, the HCF is 1.
Question 5. Write first 3 multiples of Question 6. What are the possible factors of a 12 b 18? Question 7. Write first three multiples of Question 8. Write pairs of twin prime numbers less than Solution: Pairs of twin prime numbers are: 3, 5 , 5, 7 , 11, 13 , 17, Question 9. Write the number which is even as well as prime. Solution: 2 is the only even number which is prime number also.
Question What is the fundamental theorem of arithmetic? Solution: Every number greater than 1 has exactly one prime factorisation.
Without actual division, show that 11 is a factor of 1,10, Hence, 11 is a factor of 1,10, The sum of two numbers is 25 and their product is Find the numbers.
Solution: The product of two numbers is Is divisible by 11? Hence, is not divisible by If one of the numbers is 24, find the other number. Find the LCM of 12 and Find the smallest 4-digit number which is divisible by 18, 24 and Find the greatest number which divides 82 and leaving 1 and 6, respectively as remainders.
Solution: Given numbers are 82 and and the remainders are 1 and 6 respectively. Find the greatest number that will divide , and leaving remainders 14, 15 and 17 respectively. Solution: Given numbers are , and and the respective remainders are 14, 15 and Now let us find their HCF. Common factors are 3 and 7. Three sets of English, Hindi, and Urdu books are to be stacked in such a way that the books are stored subjectwise and the height of each stack is the same.
The numbers of English, Hindi and Urdu books are , and respectively. Assuring that the books have that same thickness, determine the number of stacks of English, Hindi and Urdu books. Solution: To arrange the books in the required way, we have to find the greatest number that divides , and exactly. Which of the following statements are true? Solution: a Yes, is divisible by 3.
So it is true statement. Which of the following numbers is divisible by 11? Match column I with column II. Ill cows, sheep and goats are to be taken across a river. There is only one boat and the boatsman says; he will take the same number and same kind of animals in each trip. Find the largest number of animals in each trip and the number of trips he will have to make. In a seminar, the number of participants in Mathematics, Physics and Chemistry are 60, 96 and respectively.
Solution: Class 5 Maths Chapter 2 Question Answer The number of participants in each room must be the HCF of 60, 96 and RD Sharma Class 12 Solutions. Watch Youtube Videos.
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