Question

把3.4,3.8,5.1,5.5,7.6,5.7,7.7,9.1分成俩组,每组四个数,使它们的积相等

Answer 1

3.4=0.2*17

3.8=0.2*19

5.1=0.3*17

5.5=0.5*11

5.7=0.3*19

6.5=0.5*13

7.7=0.7*11

9.1=0.7*13

一组3.4 5.7 6.5 7.7

一组3.8 5.1 5.5 9.1