Find the solution set for y:?

Question

Find the solution set for y:

(3/4)y < 9 AND -(1/3)y <= -15

Answer 1

(3/4)y < 9 gives y < 12

For second part, reverse sign, reverse direction of inequality, multiply through by 3, and get

y => 45

No value of y satisfies both conditions as written.

I suspect a typo; but you should be able to solve the problem using my methods.