Question

Maria si Simona au impreuna 15 cuti .Maria are cu 5cuti mai mult decit Simona.

Answer 1

m+s=15
m=5+s
15-5=10
10:2=5
s=5
m=5+5
m=10

Answer 2

m+s=15 cutii
m=5+s
=> 5+s+s=15 
2xs=15-5
2xs=10

s=10:2
s=5 cutii are Simona
m=5+5
m=10 cutii are Maria