Question

a)Sa se afle 15% din 12 si 12% din 15.Ce observi?
b)Cat la suta este 60% din 80% din 1200?
c)Calculeaza 30% din 60% din 80% din 120.

Pls help,dau coronita!Repede va rog!!!!

Answer 1

A) 100% --- 12 => x=12*15/100=9/5=1.8

15% --- x

100% --- 15 => x=15*12/100=9/5=1.8

12% --- x

Observ ca da acelasi rezultat

b) 100% --- 1200 => x=1200*80/100=960

80% --- x

Acum aflam 60% din 960.

100% --- 960 => x=960*60/100=576

60% --- x

c) 100% --- 120 => x=120*80/100=96

80% --- x

Aflam 60% din 96.

100% --- 96 => x=96*60/100=57.6

60% --- x

Aflam 30% din 57.6

100% --- 57.6 => x=57.6*30/100=17.28

30% --- x