Question

Ana a dat 3/4 din bomboanele ei lui Victor si 1/2 din rest Irinei,ramanand cu 2 bomboane.Cate bomboane avea la inceput?

Answer 1

Notam nr initial de bomboane x.
Deci x=3x/4+x/4/2+2
        x=3x/4+x/8+2
        x=6x/8+x/8+2
        x=7x/8+2
Deci x/8=2 asadar x=16

Answer 2

3/4x+ 1/2*3/4x+2 =x
3/4x +3/8x+2=x
6x+3x+16=8X
9X-8X=16
X=16
x-nr de bomboane