## Which of the following statements are true÷ 1.If a number is divisible by 3,It must be divisible by 9. 2.If a number is divisible

Question

Which of the following statements are true÷
1.If a number is divisible by 3,It must be divisible by 9.
2.If a number is divisible by 9,It must be divisible by 3.
3.A number is divisible by 18,If it is divisible by 3 and 6
4.None of these.l​

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1 month 2021-08-16T12:03:46+00:00 1 Answer 0 views 0

## Answers ( )

1. Step-by-step explanation:

Answers (1)gentry aman sharma

(a) False as 6 is divisible by 3, but not by 9.

(b) True, as 9 = 3 x 3 Therefore, if a number is divisible by 9, then it will also be divisible by 3.

(c) False as 30 is divisible by 3 and 6 both, but it is not divisible by 18.

(d) True as 9 x 10 = 90 Therefore, If a number is divisible by 9 and 10 both, then it will also be divisible by 90.

(e) False as 15 and 32 are co-primes and also composite.

(f) False as 12 is divisible by 4, but not by 8.

(g) True, as 8 = 2 x 4 Therefore if a number is divisible by 8, then it will also be divisible by 2 and 4.

(h) True as 2 divides 4 and 8 as well as 12. (4 + 8 = 12)

(i) False as 2 divides 12, but not divide 7 and 5.