there are 5 different French books and 5 different Spanish books. How many ways are there to arrange them on a shelf if
ABooks of the same language must be grouped together, French on the left, Spanish on the right?
BFrench and Spanish books must alternate in the grouping, beginning with a French book?
ABooks of the same language must be grouped together, French on the left, Spanish on the right?
BFrench and Spanish books must alternate in the grouping, beginning with a French book?