Question

Q.3 Write all the three digit numbers using the digit 3, 4 and 5.
( Do not repeat the digits).
i)
How many divisible by 3? Why?
ii) how many are divisible by 9? Why?​

Answer 1

Answer:

345, 354, 453, 435,534, 543

i) All six numbers are divisible by 3 because they all give a remainder of zero on division by 3.

ii) None of these numbers are divisible by 9 because they all give non-zero remainders on division by 9.

Answer 2

Answer:

345,354,453,435,534,543

Step-by-step explanation:

I)All six numbers are divisible by 3 because the sum of the all the digit of the numbers are divisible by 3. so, the numbers are divisible by 3.

II) All six numbers are not divisible by 9 because the sum of the all digit of the number is not divisible by 9. so, the numbers are not divisible by 9.