Question

An 8 digit number 20101-17 is divisible by 9.What digit does - stand for?

Pls don't write rubbish coz i will report i need this

Answer 1

Your answer is 6.

As,

2+0+1+0+1+ - +1+0 = 12.

The nearest multiple of 9 is 18.

So, 18-12 = 6.

2+0+1+0+1+6+1+7 = 18 = 1+8 = 9.

- stands for 6.

Answer 2

The digit stands for - is 6

Given :

An 8 digit number 20101-17 is divisible by 9

To find :

The digit stands for -

Concept :

Divisibility rule of 9 :

If the sum of the digits of a number is divisible by 9 , then the number is divisible by 9

Solution :

Step 1 of 3 :

Write down the given number

Here the given number is 20101-17

Let the digit at - is y

So the number becomes 20101y17

Step 2 of 3 :

Find sum of the digits

The sum of the digits

= 2 + 0 + 1 + 0 + 1 + y + 1 + 7

= y + 12

Step 3 of 3 :

Find the digit stands for -

We know that if the sum of the digits of a number is divisible by 9, then the number is divisible by 9

Since 20101y17 is divisible by 9

⇒ y + 12 is divisible by 9

Since y is a digit

∴ y = 6

Consequently , the digit stands for - is 6

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