Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

Two cards are drawn consecutively, without replacement, from a deck originally consisting of 4 red and 6 black cards.

Quantity A

The probability that the first card is red

Quantity B

The probability that the second card is red

See the answer choices and submit your pick over on our Challenge Problem page.