Question

Which of the following statements are true? (a) If a number is divisible by 3, it must be divisible by 9. (b) If a number is divisible by 9, it must be divisible by 3. (c) A number is divisible by 18, if it is divisible by both 3 and 6. (d) If a number is divisible by 9 and 10 both, then it must be divisible by 90. (e) if two numbers are co-primes, at least one of them must be prime. (1) All numbers which are divisible by 4 must also be divisible by 8. (g) All numbers which are divisible by 8 must also be divisible by 4. (h) If a number exactly divides two numbers separately.- it must exactly divide their sum. ) If a number exactly divides the sum of two numbers, it must exactly divide the two numbers separately.​

Answer 1

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a) False

b) True

c) True

d) True

e) False

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Answer 2

Answer:

a) F

b) T

C) F

d) T

e) F

f) F

g) T

h) T