How many car color-combos can be made if there are 4 ext. colors, 3 int. colors?

[statistics]

Question
An automobile manufacturer has four colors available for automobile
exteriors and three for interiors. How many different combinations can he
produce?

Please see the attached solution if there is any mistake Please identify.

Regards

 

[mmm4444bot]

Your work and solution look good, except that I'm not sure what "Different no 4 combination" means. ;-)

 

[ksdhart2]

Your work and solution look good, except that I'm not sure what "Different no 4 combination" means. ;-)

I believe that's an "of" not a "4"

 

[statistics]

yes that is different number of combinations