The grasshopper, the frog and the mouse had a jumping contest. The grasshopper jumped w inches. The mouse jumped x inches lesser than the frog who jumped y inches farther than the grasshopper. How much farther did the mouse jump than the grasshopper?
The frog jumped y = 37 inches. 
The mouse jumped x = 16 inches. 
The grasshopper jumped w = 14 inches. 

The mouse jumped 21 inches farther than the grasshopper.