Math
posted by Shabalabadingdong on .
J drove from bright town to Happy town at a speed of 64km/h. Two hours later H stated driving from Happy town to Bright town at a speed of 96km/h. When J reached Happy towm H was still 32km/h away from bright town. What was the distance from the towns?

Let D be the distance between towns.
J reaches Happytown D/64 hours after starting. At that time, H has travelled for D/64  2 hours, and covered a distance 96*[(D/64)2] km
Here is what you know:
96*[(D/64) 2] + 32 = D
3D/2 + 32 192 = D
D/2 = 160
D = 320 km
J drove for 320/64 = 5 hours
H had driven for 3 hours when J arrived, covering 288 km, leaving 32 to go. 
Pls.........可惜不是你。。。陪我到最后。。