Question

0,1×{[0,01×100+(4-1,2×0,1)]×5,2+100×0,01}
Dau coroana

Answer 1

=0,1×{[1+(4-0,12)]×5,2+1}=
=0,1×[(1+3,88)×5,2+1]=
=0,1×(4,88×5,2+1)=
=0,1×(25,376+1)=
=0,1×26,376=
=2,6376