Question

If 35a64 is divisible by 3, then the value of a is:

Answer 1

a=0,3,6,9

Divisible test of 3:sum of all digits should be multiple of 3

3+5+a+6+4=18

18 is multiple of 3

a=0,3,6,9

Sol(b) :97704

9+7+7+0+4=27, 27 is multiple of 3 therefore 97704 is Divisible by 3

Similarly 13266 :1+3+2+6+6=18 implies 13266 is Divisible by 3

And 574:5+7+4=16, which is not multiple of 3 implies not Divisible by 3

Answer 2

Answer: 0 or 3 or 6 or 9,..(Any one of them of your choice)

Step-by-step explanation: According to the divisibility rule of 3...If the sum of all the digits of the number is divisible by 3....Then the number is divisible by 3...So 3+5+6+4 = 18....

now if a = 0...then 3+5+0+6+4 = 18..which is divisible by 3

If you take a = 3...then 3+5+3+6+4 = 21..which is divisible by 3

If a = 6..then 3+5+6+6+4 = 24...which is divisible by 3

If a = 9 then 3+5+9+6+4 = 27...which is divisible by 3...

So you can take either 0,3,6 or 9..