1.甲数是乙数的3/4,乙是甲的(133 )%。列式:( );
1/(3/4)=4/3=133%
2.80千克比(64 )多25%。列式( );
80/(1+25%)=80/(5/4)=80*(4/5)=64
3.四米比( 10)米少60%。列式( );
4/(1-60%)=4/(2/5)=10
4.一个数的40%是64,这个数的5%是(8 )。列式:( )。
(64/40%)*5% =160*5%=8
1、 133.3 1/(3/4)* 100%
2、 64 80/(1+25%)
(1)75%,(1-1/4)*100%
(2)64,80/(1+25%)
(3)10,40/(1-60%)
(4)8,64*5%/40%
1.乙是甲的4/3,1/(3/4)=4/3
2.64千克,4*80/(4+1)=64
3.10米 60%=3/5 则5*4/(5-3)=10
4.8 64/0.4=160,160*0.05=8