数学题：今天，小明乘车从家到郊区看望外婆，汽车的速度是48千米/时。己经行驶了3/1小时，距离外婆家还有5千米的路程。小明家到外婆家的路程是多少千米？

数学题解答：思路是先算出已经行的路程，再加上剩下的，就是小明家到外婆家的距离。

48 × 1/3 + 5 = 21（千米）

答：小明家到外婆家的路程是21千米。

推荐阅读：
Maximize Sum Of Array After K Negations using Greedy Algorithm v　 The Variable Expansion Algorithm Using Regular Expression in Jav　 How to Compute the Number of Days in a Month?　 How to Determine the Leap Year?　 How to Determine the Armstrong Number?　 Facebook Recommends Psychiatrist’s Friends Connect, Completely V　 3 Link Building Methods Every Blogger Should Be Using　 3 Types of Sticky Content Bloggers Should Be Using　 The Basics of Building an SEO-Friendly Site with Wix　 Social Media Image Sizes Cheat Sheet for 2016