Question

Q1. 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.
(f) All numbers which are divisible by 4 must also be divisible by 8.
plz answer all plz​

Answer 1

Step-by-step explanation:

B) If a number is divisible by 9, it must be divisible by 3 and 6.

I HOPE IT WILL HELP YOU.

Answer 2

Answer:

option a is false because 6 is divisible by 3 not by 9

option b is true.

option c is true.6×3=18.

option d is true.

option e is true.

option f is true.