Question

Dau coroana la cel mai bun răspuns ​

Answer 1

Răspuns:

a+b+c=148

a=(b+c):3 a×3=b+c

b=11+c

a+a×3=148

4a=148

a=148:4

a=37(prima zi)

37+11+c+c=148

2c=148-48

c=100:2

c=50(a treia zi)

b=11+50=60(a doua zi)