Ask an applied problem of the equation of grade one in junior high school Xiao Ming goes to school by Zhang Mi's house. The distance between them is 2km. Wang Hua takes 10 minutes less to go to school by bike than Zhang Mi does by foot. If Wang Hua's speed is 15km / h and Zhang Mi's speed is 6km / h, how long does it take each of them to go to school? Be sure to use the equation solution!
15x=2+6(x+1/6)
9x=3
x=1/3
Wang Hua 1 / 3 hour is 20 minutes
Zhang Mi 30 minutes
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