Here's a logic test: Astronomers discovered two new planet that they thought might contain life. One was in which the planets differed was that the first one (Planet X) had 10% more mass than the other (Planet Z). If a particular boulder weighs 800 pounds on Planet X, then it will weigh _____ on planet Z. (A) less (B) more  Choose the answer between "Planet Z" and "Planet X".
Answer:
Planet X