Question

126a62 is divisible by 3:a=​

Answer 1

Answer:

126a62 is divisible by 3:a++++=

Step-by-step explanation:

Answer 2

Step-by-step explanation:

The even digits are 0,2,4,6,8

The even digits are 0,2,4,6,8Since we know that for divisibility by 3 we just have to check that the sum of digits of the number is divisible by 3.

The even digits are 0,2,4,6,8Since we know that for divisibility by 3 we just have to check that the sum of digits of the number is divisible by 3.4 digit number divisible by 3.=combination of (2,4,6,0),(8,4,6,0)

The even digits are 0,2,4,6,8Since we know that for divisibility by 3 we just have to check that the sum of digits of the number is divisible by 3.4 digit number divisible by 3.=combination of (2,4,6,0),(8,4,6,0)Hence the no. of such digits ={4!−3!}+{4!−3!}=36

The even digits are 0,2,4,6,8Since we know that for divisibility by 3 we just have to check that the sum of digits of the number is divisible by 3.4 digit number divisible by 3.=combination of (2,4,6,0),(8,4,6,0)Hence the no. of such digits ={4!−3!}+{4!−3!}=36We are subtracting 3! because if 0 comes in the 1st place the number will no longer remain 4 digit number.