A skating rink kept track of which skates customers rented. Skate rentals

Question

A skating rink kept track of which skates customers rented.
                           Skate rentals
                     In-line skates                Roller skates
Children             35                                   15
Adults                30                                   20

Based on the table, which statement is true?
Of the adults, 60% rented in-line skates.
Of all the customers, 30% rented roller skates and are children.
Half the customers rented roller skates.
A total of 50 customers were surveyed.

Kunduz · Accepted Answer

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