EXERCISE 3.5. Which of the following statements are true?(a) Ifa 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(e) Iftwo numbers are co-primes, at least one of them must be prim() All numbers which are divisible by 4 must also be divisible by 8.

EXERCISE 3.5. Which of the following statements are true?(a) Ifa numbe

1.	EXERCISE 3.5. Which of the following statements are true?(a) Ifa 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(e) Iftwo numbers are co-primes, at least one of them must be prim() All numbers which are divisible by 4 must also be divisible by 8.
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