1.3:8=24:x 2.3/4:9/10=x:3/5 3.12.5/2.5=x:10

问题描述:

1.3:8=24:x 2.3/4:9/10=x:3/5 3.12.5/2.5=x:10
3:8=24:x 3/4:9/10=x:3/5 12.5/2.5=x:10

1)3/8=24/x => x = 24*8/3 => x=64
2)(3/4)/(9/10) = x/(3/5) => x= (3*10)*3/(4*9)*5 => x= 1/2
3)5 = x/10 => x= 50