**Riddle**: A bag of banana weighs 50 lbs divided by half of its weight. how much does the bag of banana weigh?

**Answer**: The correct answer is 10 lbs

Let the bag of bananas weigh x lb

x = 50 lbs /(x/2) lbs.

x = 50 × 2/x

x = 100/x

Cross multiplication

x^2 = 100

x = 10 lb