两辆汽车同时分别从相距500千米的A、B两地出发，相向而行，速度分别为每小时40千米与每小时60千米，几小时后两车相遇？,f3i(g'}6g1q(e2S-a5F;b8n
算式：提示3E/t*C)U;z;c*\0s,g)R,f3i(g'}6g1q(e2S-a5F;b8n
答：7z0B;s4`1V小时后两车相遇。,f3i(g'}6g1q(e2S-a5F;b8n