Question

number 2Z35 is divisible by 9 if Z​

Answer 1

Answer:

Sum of digits= 2+3+5+Z

=10+Z

If sum of digits is divisible by 9, then only no. will be divisible by 9.

As,18 is div. by 9

So,Z can be =8

We can't choose a negative no. ,as digits are never negative.

Also we can't choose 17 to make it 27 as a single digit Z can't be a 2-digit no

So,Z=8

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Answer 2

Answer:

The required value of $Z = 8$.

Step-by-step explanation:

Concept :

Divisibility rule of $9$:

If the sum of the digits of a count is divisible by $9$, then the count is also divisible by $9$.

Given :

It is given that the number $2Z35$ is divisible by $9$.

To find :

We have to find the value of $Z$.

Solution :

The provided number is,

$2Z35$

Firstly, calculate the sum of the digits,

$= 2 + Z + 3 + 5$

$= Z + 10$

Now, find the value of Z

We know that if the sum of the digits of a count is divisible by $9$, then the count is also divisible by $9$,

Thus, the number $2Z35$ is divisible by $9$,

$Z + 10$ is divisible by $9$

Since $Z$ is a digit, so

$Z = 8$

As, $10+8=18$ and $18$ is divisible by $9$.

Therefore, the required value of $Z = 8$.

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