Question

If c is between a and b then ac=cb choices: sometimes, never, always

Answer 1

we know that

If C is between A and B

then

$AB=AC+CB$

Examples

N $1$

Let

$AB=10\ units \\AC=5\ units$

Find the value of CB

substitute in the equation above

$AB=AC+CB$

$10=5+CB$

$CB=5\ units$

in this case

$AC=CB$

N $2$

Let

$AB=10\ units \\AC=8\ units$

Find the value of CB

substitute in the equation above

$AB=AC+CB$

$10=8+CB$

$CB=2\ units$

in this case

$AC\neq CB$

therefore

the answer is

sometimes