Question

A3 - digit 5a8 is divisible by 9 .find the value of a​

Answer 1

Answer:

A five digit number is divisible by 9. A new number is formed by interchanging the hundreds and the ones digits. What is the remainder when this new number is divided by 9?

There is a trick for checking whether a number is divisible by nine:

Trick: Divisibility by Nine

Add up the digits of the number

If the sum is divisible by nine, the original number is divisible by nine

Let’s test this on a number that I know is divisible by 9:

12345678

Add up the digits: 1+2+3+4+5+6+7+8 = 36

36 is divisible by 9, so 12345678 is also divisible by 9

Now, let’s interchange the hundreds and the units digits:

12345876

Add up the digits: 1+2+3+4+5+6+7+8 = 36

(it’s okay to add them out of order)

Do you see that if your original number is divisible by 9, so will your rearranged number.

So, I ask you this question:

A five-digit number is divisible by 9. A new number is formed by interchanging the hundreds and ones digits. What is the remainder when this new number is divided by 9?

Answer 2

Answer:

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