Question

789101112131415x divided by 8 what is the value of x

Answer 1

the value of x would be as follows-
2

Answer 2

Answer:

The required value of x for which 789101112131415x is divisible by 8 is 2.  

Step-by-step explanation:

Given : 789101112131415x divided by 8.

To find : What is the value of x?

Solution :

The rule of divisibility by 8,

A number having more than 3 digits is divisible by 8, if the last three digit of the number is divisible by 8,

In the given number, The last three digit is 15x.

We will check by substituting x = 0, 2, 4, 6, 8 ( Because it must be even number)

If x = 2,

⇒ 152 is divisible by 8,

⇒ The value of x can be 8.

But for x = 0, 4, 6 and 8,

⇒ 150, 154, 156 and 158 are not divisible by 8,

⇒ The value of x can not be equal to 0, 4, 6 or 8.

Therefore, The required value of x for which 789101112131415x is divisible by 8 is 2.