If it takes a machine 2⁄3 minute to produce one item, how many items will it produce in 1 hours?
Choose the correct choice.
A) 1 ⁄ 3	B) 4 ⁄ 3	C) 90	D) 120	E) 180

Rationale: "1 item takes 2 / 3 min so it takes 60 min to produce x 2 x / 3 = 60 the x = 90 answer : c"
Answer: C