SAT Mathematics Practice Test 5

The weight of an object on Venus is approximately $\frac{9}{10}$ its weight on Earth. If an object weighs 100 pounds on Earth, then the object’s weight on Venus is given by $\frac{9}{10}\left(100\right)=90$ pounds. The same object’s weight on Jupiter is approximately $\frac{23}{10}$ of its weight on Earth; therefore, the object weighs $\frac{23}{10}\left(100\right)=230$ pounds on Jupiter. The difference between the object’s weight on Jupiter and the object’s weight on Venus is $230-90=140$ pounds. Therefore, an object that weighs 100 pounds on Earth weighs $140$ more pounds on Jupiter than it weighs on Venus.
Choice A is incorrect because it is the weight, in pounds, of the object on Venus. Choice B isincorrect because it is the weight, in pounds, of an object on Earth if it weighs $100$ pounds onVenus. Choice D is incorrect because it is the weight, in pounds, of the object on Jupiter.