Question

31 X is divisible by 2 if x =

Answer 1

If x is any even no. For least no. It can be either zero or two...

@skb

Answer 2

Given:

$31x$

To Find:

The value of x if $31x$ is divisible by 2.

Solution:

The divisibility rule of 2 says that a number is only divisible by 2 if it ends up with 0, 2, 4, 6, and 8.

So, if  0, 2, 4, 6, and 8 are substituted in the place of x into $31x$.

Check by substituting 0 for x into 31x.

$\frac{310}{2}=155$

Check by substituting 2 for x into 31x.

$\frac{312}{2}=156$

Check by substituting 4 for x into 31x.

$\frac{314}{2}=157$

Check by substituting 6 for x into 31x.

$\frac{316}{2}=158$

Check by substituting 8 for x into 31x.

$\frac{318}{2}=159$

Thus, 31x is divisible by 2 if x is equal to either 0, 2, 4, 6, or 8.