It is known that the ratio of the number of a, B and C is 3:4:5. The number of a is 16 less than that of C. what is the number of B

It is known that the ratio of the number of a, B and C is 3:4:5. The number of a is 16 less than that of C. what is the number of B

16÷(5 - 3)×4 = 32
A: the number B is 32