Attributes type “Select”

Hi! i have a travel booking site. Depending on how many adults and children participate the cost changes. I have created 2 “select” attributes called “Number of adults” (inside: 1 adult, 2 adults, 3 adults …. etc) and “Number of Children” (inside: 1 child, 2 children, 3 children …. etc). Currently using only “variations” Woocommerce I can only enter one value for the couple num Adult + num Children but i lose the price as much as 1 child and 1 adult.
I would like for example 1 Adult + 1 Child = 100 € + 50 €; or 2 Adults + 1 Child = 90 € + 40 €. In other words, you should enter for each Adult-Child couple of partial values ??so that you can return the customer if you choose a tour of 1 Adult + 1 Child will pay 150 € and that the cost of a child is 50 € and that of the adult is 100 €. it would be possible?

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