Question

A bag has 90 fruits in it there are 9 times as many oranges as there are apples.

Answer 1

-- IF all 90 pieces in the bag are oranges or apples,
THEN there are 9 apples and 81 oranges.

-- You didn't specify that, so it's possible that there could be
2 apples, 18 oranges, and 70 kumquats or sabra pears.