Answer:
45
Step-by-step explanation:
We have to prove that any number that is divisible by 3 need not be divisible by 9
To show that conjecture that any number that is divisible by 3 is also divisible by 9 we have to show an counter example.
THe four options given are 18, 27, 48 and 45.
Out of these 4 numbers, 18, 27, 45 are divisible by both 3 and 9.
Hence these numbers cannot be shown as counter example.
Take the case of 48
48 is divisible by 3 as 48 =16(3)
But 48 is not divisible by 9.
Thus 45 is a good counterexample to prove number that is divisible by 3 is also divisible by 9 is false.
