how to count filtered cell

[luffyfang]

Hi

I want to how to write a formula in cell x(see below table) to show the number of blue color product if the condition of the product is good.

	Product Condition	Product Color		X
	good	blue
	bad	yellow
	bad	blue
	good	blue
	good	blue
	bad	red
	good	pink
	bad	blue

<tbody>
</tbody>

Many thanks

 

[Marcelo Branco]

Maybe...

=COUNTIFS(A:A,"good",B:B,"blue")

M.