Question

Replace * by the smallest digit in the number 6*485702 so that the number formed is divisible by 9

0
1
2
4​

Answer 1

Answer:

The number is 2 because 6*485702 here we can divide it by even number.

Answer 2

Answer:

Step-by-step explanation:

We will be using the concepts of divisibility by 3 to solve this.

A number is divisible by 3 if the sum of all digits in the number is also divisible by 3.

(a) ___ 6724

Sum of the digits = 4 + 2 + 7 + 6 = 19

Thus, The smallest digit to be placed is blank space = 2.

Then the sum = 19 + 2 = 21, which is divisible by 3.

The greatest digit to be placed in blank space = 8.

Then, the sum = 19 + 8 = 27, which is divisible by 3

Therefore, the required digits are 2 and 8.

(b) 4765 ____ 2.

Sum of digits = 2 + 5 + 6 + 7 + 4 = 24

Thus, The smallest digits to be placed in blank space = 0.

Then, sum = 24 + 0 = 24, which is divisible by 3.

The greatest digit to be placed in blank space = 9.

Then, the sum = 24 + 9 = 33, which is divisible by 3.

Therefore, the required digits are 0 and 9.