Question

State whether the following statements are True or False:
1. "The HCF of 20 and 30 is 1.
2. The addition or the subtraction of the two rational numbers is irrational
3. 10 and 17 are co-prime numbers.
4. The decimal expansions of is non-terminating repeating.
5. For any natural number 1, number 6" ends with digit 5.
6. Product of the smallest power of each common prime factor in the number is called HCF.
7. The number of decimal places after which the decimal expansion of the rational number
will terminate after two digits.
835 is the greatest number that divided 318 and 739 leaving remainders 3 and 4 respectively
9. For any two positive integers a and b, HCF(a,b) x LCM(a,b) = a + b​

Answer 1

1) False

2) False

3) True

4) True

9) True

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