荔枝树和龙眼树的比是5:3,荔枝树比龙眼树多40棵,荔枝树和龙眼树各有多少棵?

问题描述:

荔枝树和龙眼树的比是5:3,荔枝树比龙眼树多40棵,荔枝树和龙眼树各有多少棵?

5+3=8,
40÷(

5
8
-
3
8
),
=40÷
1
4

=160(棵);
荔枝树:160×
5
8
=100(棵);
龙眼树:160×
3
8
=60(棵);
答:荔枝树有100棵,龙眼树有60棵.