(1)ڽȾֵ 3% ( 3%) ģʵ ۿ;
(2)ڽȾֵ 3%ʱȨ˷
˷ģ˷֮ 30 ڽ
Ѹ˻ˣ _____________ʸϢ
˲˷ģȨǼڽںͬԼڽ ʱڽ 3%( 3%)ֵķۿ ˲; 3%ֵķۿɳ˳е Ȩˡ Ȩ ǼڽСںͬǼڽʱ ڽ Ⱦֵ 3%( 3%)ֵķۿɳ˷ ; ֵ 3% ֵķۿɳ˫ˡ
ȨǼڽ -ͬԼڽ
17
=-------------------------------------------- 100%
ͬԼڽ
Ʊ죬˫ͬģӦǩ Э顣
3.ݱͬƼ۵Լ˫ͬⰴ ԭ
(1)ڽȾֵ ģʵ㷿ۿ ;
3%( 3%)
(2)ڽȾֵһ ʱȨ˷
18
3%
˷ģ˷֮ 30 ڽ
Ѹ˻ˣ _______________ʸϢ
˲˷ģ ȨǼǽںͬԼʱ 3%( 3%) ֵķۿ˲ ; 3% ֵķۿɳ˳еȨˡȨǼǽ СںͬԼʱ Ⱦֵ 3%( 3%) ֵķۿɳ˷˾ֵ ˫ˡ
3%ֵķۿɳ
ȨǼ -ͬԼ
=------------------------------ 100%
ͬԼ
19
Ʊ죬˫ͬģӦǩ Э顣
ʽޡ
˰е _______________ʽڸ
1. һ
__________________________________________________________________ _
2.
__________________________________________________________________ _
3.
20
ʽ