Mr. and Mrs. Multani provide fruit for their son’s soccer team. For every 3 apples they bring, they also need 1 orange. They developed a table to help them prepare. How many apples will they bring if they take 5 oranges?

For every 3 apples, they need 1 orange, so if they take 5 oranges, they need 5/1 =<<5/1=5>>5 sets of 3 apples.

Therefore, they will bring 5*3= <<5*3=15>>15 apples. Answer: \boxed{15}.