甲乙两车从AB两地相向而行两车在离中点50km处相遇,甲每小时行30km,乙每小时比甲多行20%求AB两地间的路程
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50÷【1/2-1/(1+1+20%)】
=50÷【1/2-5/11】
=50÷1/22
=1100千米
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=50÷【1/2-5/11】
=50÷1/22
=1100千米
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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设AB路程为S,甲的速度为a,行驶时间为t甲:a*t=s/2-50 ①乙:a*(1+20%0*t=s/2+50 ②两式相除①/②得出6/5=(s/2-50)/(s/2+50)算出S=1100km
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