Question

A integer n is multiple of both 5 and 9. which of the following must be true
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Answer 1

Answer:

where is the option ?....

Answer 2

Step-by-step explanation:

Given that

n is the multiple of both 5 and 9

multiples of 5=5,10,15,20,25,30,35,40,45,50,...

multiples of 9 =9,18,27,36,45,54,.....

n is the multiple of both 5 and 9

=45,90,135,180,...

So n is the multiple of 45