Question

Alexandra, Andreea si Adi ai impreuna 1600 lei. Calculati ce suma are fiecare daca Andreea are cu 200 de lei Mai mult decat Adi iar Alexandra are cat Andreea si Adi la in loc.

Answer 1

Al ,___,___,+200 ]
An,___,+200 ]1600
Ad,___, ]
200+200=400 (val. surplus)
1600-400=1200(val. fara surplus)
2+1+1=4(parti egale)
1200:4=300 (val. parti egale)
300+300+200=800(lei Alexandra)
300+200=500(lei Andreea)
300 (lei Adi)